20866125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{7949}}^1$

素因数の和:7974

約数の個数: 32

約数和(自身を含む): 39686400

約数和(自身を除く): 18820275

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 7949, 23847, 39745, 55643, 119235, 166929, 198725, 278215, 596175, 834645, 993625, 1391075, 2980875, 4173225, 6955375, 20866125]

約数ペア:

[(1, 20866125), (3, 6955375), (5, 4173225), (7, 2980875), (15, 1391075), (21, 993625), (25, 834645), (35, 596175), (75, 278215), (105, 198725), (125, 166929), (175, 119235), (375, 55643), (525, 39745), (875, 23847), (2625, 7949)]