21965120

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{827}}^1$

素因数の和:927

約数の個数: 56

約数和(自身を含む): 52998624

約数和(自身を除く): 31033504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 827, 830, 1328, 1654, 1660, 2656, 3308, 3320, 4135, 5312, 6616, 6640, 8270, 13232, 13280, 16540, 26464, 26560, 33080, 52928, 66160, 68641, 132320, 137282, 264640, 274564, 343205, 549128, 686410, 1098256, 1372820, 2196512, 2745640, 4393024, 5491280, 10982560, 21965120]

約数ペア:

[(1, 21965120), (2, 10982560), (4, 5491280), (5, 4393024), (8, 2745640), (10, 2196512), (16, 1372820), (20, 1098256), (32, 686410), (40, 549128), (64, 343205), (80, 274564), (83, 264640), (160, 137282), (166, 132320), (320, 68641), (332, 66160), (415, 52928), (664, 33080), (827, 26560), (830, 26464), (1328, 16540), (1654, 13280), (1660, 13232), (2656, 8270), (3308, 6640), (3320, 6616), (4135, 5312)]