21516536

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 41787840

約数和(自身を除く): 20271304

約数列:

[1, 2, 4, 8, 37, 74, 148, 157, 296, 314, 463, 628, 926, 1256, 1852, 3704, 5809, 11618, 17131, 23236, 34262, 46472, 68524, 72691, 137048, 145382, 290764, 581528, 2689567, 5379134, 10758268, 21516536]

約数ペア:

[(1, 21516536), (2, 10758268), (4, 5379134), (8, 2689567), (37, 581528), (74, 290764), (148, 145382), (157, 137048), (296, 72691), (314, 68524), (463, 46472), (628, 34262), (926, 23236), (1256, 17131), (1852, 11618), (3704, 5809)]