21850720

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3691}}^1$

素因数の和:3743

約数の個数: 48

約数和(自身を含む): 53031888

約数和(自身を除く): 31181168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3691, 5920, 7382, 14764, 18455, 29528, 36910, 59056, 73820, 118112, 136567, 147640, 273134, 295280, 546268, 590560, 682835, 1092536, 1365670, 2185072, 2731340, 4370144, 5462680, 10925360, 21850720]

約数ペア:

[(1, 21850720), (2, 10925360), (4, 5462680), (5, 4370144), (8, 2731340), (10, 2185072), (16, 1365670), (20, 1092536), (32, 682835), (37, 590560), (40, 546268), (74, 295280), (80, 273134), (148, 147640), (160, 136567), (185, 118112), (296, 73820), (370, 59056), (592, 36910), (740, 29528), (1184, 18455), (1480, 14764), (2960, 7382), (3691, 5920)]