2021004825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{383}}^1$

素因数の和:468

約数の個数: 144

約数和(自身を含む): 4213063680

約数和(自身を除く): 2192058855

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 25, 35, 57, 69, 75, 95, 105, 115, 133, 161, 175, 285, 345, 383, 399, 437, 475, 483, 525, 529, 575, 665, 805, 1149, 1311, 1425, 1587, 1725, 1915, 1995, 2185, 2415, 2645, 2681, 3059, 3325, 3703, 4025, 5745, 6555, 7277, 7935, 8043, 8809, 9177, 9575, 9975, 10051, 10925, 11109, 12075, 13225, 13405, 15295, 18515, 21831, 26427, 28725, 30153, 32775, 36385, 39675, 40215, 44045, 45885, 50255, 50939, 55545, 61663, 67025, 70357, 76475, 92575, 109155, 132135, 150765, 152817, 167371, 181925, 184989, 201075, 202607, 211071, 220225, 229425, 251275, 254695, 277725, 308315, 351785, 502113, 545775, 607821, 660675, 753825, 764085, 836855, 924945, 1013035, 1055355, 1171597, 1273475, 1418249, 1541575, 1758925, 2510565, 3039105, 3514791, 3820425, 3849533, 4184275, 4254747, 4624725, 5065175, 5276775, 5857985, 7091245, 11548599, 12552825, 15195525, 17573955, 19247665, 21273735, 26946731, 29289925, 35456225, 57742995, 80840193, 87869775, 96238325, 106368675, 134733655, 288714975, 404200965, 673668275, 2021004825]

約数ペア:

[(1, 2021004825), (3, 673668275), (5, 404200965), (7, 288714975), (15, 134733655), (19, 106368675), (21, 96238325), (23, 87869775), (25, 80840193), (35, 57742995), (57, 35456225), (69, 29289925), (75, 26946731), (95, 21273735), (105, 19247665), (115, 17573955), (133, 15195525), (161, 12552825), (175, 11548599), (285, 7091245), (345, 5857985), (383, 5276775), (399, 5065175), (437, 4624725), (475, 4254747), (483, 4184275), (525, 3849533), (529, 3820425), (575, 3514791), (665, 3039105), (805, 2510565), (1149, 1758925), (1311, 1541575), (1425, 1418249), (1587, 1273475), (1725, 1171597), (1915, 1055355), (1995, 1013035), (2185, 924945), (2415, 836855), (2645, 764085), (2681, 753825), (3059, 660675), (3325, 607821), (3703, 545775), (4025, 502113), (5745, 351785), (6555, 308315), (7277, 277725), (7935, 254695), (8043, 251275), (8809, 229425), (9177, 220225), (9575, 211071), (9975, 202607), (10051, 201075), (10925, 184989), (11109, 181925), (12075, 167371), (13225, 152817), (13405, 150765), (15295, 132135), (18515, 109155), (21831, 92575), (26427, 76475), (28725, 70357), (30153, 67025), (32775, 61663), (36385, 55545), (39675, 50939), (40215, 50255), (44045, 45885)]