21619528

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2459}}^1$

素因数の和:2629

約数の個数: 32

約数和(自身を含む): 46641600

約数和(自身を除く): 25022072

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2459, 4396, 4918, 8792, 9836, 17213, 19672, 34426, 68852, 137704, 386063, 772126, 1544252, 2702441, 3088504, 5404882, 10809764, 21619528]

約数ペア:

[(1, 21619528), (2, 10809764), (4, 5404882), (7, 3088504), (8, 2702441), (14, 1544252), (28, 772126), (56, 386063), (157, 137704), (314, 68852), (628, 34426), (1099, 19672), (1256, 17213), (2198, 9836), (2459, 8792), (4396, 4918)]