19865744

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1527

約数の個数: 40

約数和(自身を含む): 41277120

約数和(自身を除く): 21411376

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1459, 1702, 2918, 3404, 5836, 6808, 11672, 13616, 23344, 33557, 53983, 67114, 107966, 134228, 215932, 268456, 431864, 536912, 863728, 1241609, 2483218, 4966436, 9932872, 19865744]

約数ペア:

[(1, 19865744), (2, 9932872), (4, 4966436), (8, 2483218), (16, 1241609), (23, 863728), (37, 536912), (46, 431864), (74, 268456), (92, 215932), (148, 134228), (184, 107966), (296, 67114), (368, 53983), (592, 33557), (851, 23344), (1459, 13616), (1702, 11672), (2918, 6808), (3404, 5836)]