21835280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11867}}^1$

素因数の和:11903

約数の個数: 40

約数和(自身を含む): 52978752

約数和(自身を除く): 31143472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11867, 23734, 47468, 59335, 94936, 118670, 189872, 237340, 272941, 474680, 545882, 949360, 1091764, 1364705, 2183528, 2729410, 4367056, 5458820, 10917640, 21835280]

約数ペア:

[(1, 21835280), (2, 10917640), (4, 5458820), (5, 4367056), (8, 2729410), (10, 2183528), (16, 1364705), (20, 1091764), (23, 949360), (40, 545882), (46, 474680), (80, 272941), (92, 237340), (115, 189872), (184, 118670), (230, 94936), (368, 59335), (460, 47468), (920, 23734), (1840, 11867)]