20867175

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13249}}^1$

素因数の和:13272

約数の個数: 36

約数和(自身を含む): 42718000

約数和(自身を除く): 21850825

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13249, 39747, 66245, 92743, 119241, 198735, 278229, 331225, 463715, 596205, 834687, 993675, 1391145, 2318575, 2981025, 4173435, 6955725, 20867175]

約数ペア:

[(1, 20867175), (3, 6955725), (5, 4173435), (7, 2981025), (9, 2318575), (15, 1391145), (21, 993675), (25, 834687), (35, 596205), (45, 463715), (63, 331225), (75, 278229), (105, 198735), (175, 119241), (225, 92743), (315, 66245), (525, 39747), (1575, 13249)]