21502984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{587}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 42688800

約数和(自身を除く): 21185816

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 241, 482, 587, 964, 1174, 1928, 2348, 4579, 4696, 9158, 11153, 18316, 22306, 36632, 44612, 89224, 141467, 282934, 565868, 1131736, 2687873, 5375746, 10751492, 21502984]

約数ペア:

[(1, 21502984), (2, 10751492), (4, 5375746), (8, 2687873), (19, 1131736), (38, 565868), (76, 282934), (152, 141467), (241, 89224), (482, 44612), (587, 36632), (964, 22306), (1174, 18316), (1928, 11153), (2348, 9158), (4579, 4696)]