21102585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28711}}^1$

素因数の和:28733

約数の個数: 24

約数和(自身を含む): 39278016

約数和(自身を除く): 18175431

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28711, 86133, 143555, 200977, 430665, 602931, 1004885, 1406839, 3014655, 4220517, 7034195, 21102585]

約数ペア:

[(1, 21102585), (3, 7034195), (5, 4220517), (7, 3014655), (15, 1406839), (21, 1004885), (35, 602931), (49, 430665), (105, 200977), (147, 143555), (245, 86133), (735, 28711)]