21999144

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{21317}}^1$

素因数の和:21369

約数の個数: 32

約数和(自身を含む): 56279520

約数和(自身を除く): 34280376

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 21317, 42634, 63951, 85268, 127902, 170536, 255804, 511608, 916631, 1833262, 2749893, 3666524, 5499786, 7333048, 10999572, 21999144]

約数ペア:

[(1, 21999144), (2, 10999572), (3, 7333048), (4, 5499786), (6, 3666524), (8, 2749893), (12, 1833262), (24, 916631), (43, 511608), (86, 255804), (129, 170536), (172, 127902), (258, 85268), (344, 63951), (516, 42634), (1032, 21317)]