20672925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{233}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 42479424

約数和(自身を除く): 21806499

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 169, 175, 195, 233, 273, 325, 455, 507, 525, 699, 845, 975, 1165, 1183, 1365, 1631, 2275, 2535, 3029, 3495, 3549, 4225, 4893, 5825, 5915, 6825, 8155, 9087, 12675, 15145, 17475, 17745, 21203, 24465, 29575, 39377, 40775, 45435, 63609, 75725, 88725, 106015, 118131, 122325, 196885, 227175, 275639, 318045, 530075, 590655, 826917, 984425, 1378195, 1590225, 2953275, 4134585, 6890975, 20672925]

約数ペア:

[(1, 20672925), (3, 6890975), (5, 4134585), (7, 2953275), (13, 1590225), (15, 1378195), (21, 984425), (25, 826917), (35, 590655), (39, 530075), (65, 318045), (75, 275639), (91, 227175), (105, 196885), (169, 122325), (175, 118131), (195, 106015), (233, 88725), (273, 75725), (325, 63609), (455, 45435), (507, 40775), (525, 39377), (699, 29575), (845, 24465), (975, 21203), (1165, 17745), (1183, 17475), (1365, 15145), (1631, 12675), (2275, 9087), (2535, 8155), (3029, 6825), (3495, 5915), (3549, 5825), (4225, 4893)]