172921245

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 343948032

約数和(自身を除く): 171026787

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 53, 69, 105, 115, 147, 159, 161, 193, 245, 265, 345, 371, 483, 579, 735, 795, 805, 965, 1113, 1127, 1219, 1351, 1855, 2415, 2597, 2895, 3381, 3657, 4053, 4439, 5565, 5635, 6095, 6755, 7791, 8533, 9457, 10229, 12985, 13317, 16905, 18285, 20265, 22195, 25599, 28371, 30687, 31073, 38955, 42665, 47285, 51145, 59731, 66585, 71603, 93219, 127995, 141855, 153435, 155365, 179193, 214809, 217511, 235267, 298655, 358015, 466095, 501221, 652533, 705801, 895965, 1074045, 1087555, 1176335, 1503663, 1646869, 2506105, 3262665, 3529005, 4940607, 7518315, 8234345, 11528083, 24703035, 34584249, 57640415, 172921245]

約数ペア:

[(1, 172921245), (3, 57640415), (5, 34584249), (7, 24703035), (15, 11528083), (21, 8234345), (23, 7518315), (35, 4940607), (49, 3529005), (53, 3262665), (69, 2506105), (105, 1646869), (115, 1503663), (147, 1176335), (159, 1087555), (161, 1074045), (193, 895965), (245, 705801), (265, 652533), (345, 501221), (371, 466095), (483, 358015), (579, 298655), (735, 235267), (795, 217511), (805, 214809), (965, 179193), (1113, 155365), (1127, 153435), (1219, 141855), (1351, 127995), (1855, 93219), (2415, 71603), (2597, 66585), (2895, 59731), (3381, 51145), (3657, 47285), (4053, 42665), (4439, 38955), (5565, 31073), (5635, 30687), (6095, 28371), (6755, 25599), (7791, 22195), (8533, 20265), (9457, 18285), (10229, 16905), (12985, 13317)]