21954975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 45711360

約数和(自身を除く): 23756385

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 31, 35, 57, 71, 75, 93, 95, 105, 133, 155, 175, 213, 217, 285, 355, 399, 465, 475, 497, 525, 589, 651, 665, 775, 1065, 1085, 1349, 1425, 1491, 1767, 1775, 1995, 2201, 2325, 2485, 2945, 3255, 3325, 4047, 4123, 5325, 5425, 6603, 6745, 7455, 8835, 9443, 9975, 11005, 12369, 12425, 14725, 15407, 16275, 20235, 20615, 28329, 33015, 33725, 37275, 41819, 44175, 46221, 47215, 55025, 61845, 77035, 101175, 103075, 125457, 141645, 165075, 209095, 231105, 236075, 292733, 309225, 385175, 627285, 708225, 878199, 1045475, 1155525, 1463665, 3136425, 4390995, 7318325, 21954975]

約数ペア:

[(1, 21954975), (3, 7318325), (5, 4390995), (7, 3136425), (15, 1463665), (19, 1155525), (21, 1045475), (25, 878199), (31, 708225), (35, 627285), (57, 385175), (71, 309225), (75, 292733), (93, 236075), (95, 231105), (105, 209095), (133, 165075), (155, 141645), (175, 125457), (213, 103075), (217, 101175), (285, 77035), (355, 61845), (399, 55025), (465, 47215), (475, 46221), (497, 44175), (525, 41819), (589, 37275), (651, 33725), (665, 33015), (775, 28329), (1065, 20615), (1085, 20235), (1349, 16275), (1425, 15407), (1491, 14725), (1767, 12425), (1775, 12369), (1995, 11005), (2201, 9975), (2325, 9443), (2485, 8835), (2945, 7455), (3255, 6745), (3325, 6603), (4047, 5425), (4123, 5325)]