21683420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98561}}^1$

素因数の和:98581

約数の個数: 24

約数和(自身を含む): 49675248

約数和(自身を除く): 27991828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98561, 197122, 394244, 492805, 985610, 1084171, 1971220, 2168342, 4336684, 5420855, 10841710, 21683420]

約数ペア:

[(1, 21683420), (2, 10841710), (4, 5420855), (5, 4336684), (10, 2168342), (11, 1971220), (20, 1084171), (22, 985610), (44, 492805), (55, 394244), (110, 197122), (220, 98561)]