21301872

素因数分解:

$2^4\times 3^1\times {\mathrm{151}}^1\times {\mathrm{2939}}^1$

素因数の和:3101

約数の個数: 40

約数和(自身を含む): 55413120

約数和(自身を除く): 34111248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 151, 302, 453, 604, 906, 1208, 1812, 2416, 2939, 3624, 5878, 7248, 8817, 11756, 17634, 23512, 35268, 47024, 70536, 141072, 443789, 887578, 1331367, 1775156, 2662734, 3550312, 5325468, 7100624, 10650936, 21301872]

約数ペア:

[(1, 21301872), (2, 10650936), (3, 7100624), (4, 5325468), (6, 3550312), (8, 2662734), (12, 1775156), (16, 1331367), (24, 887578), (48, 443789), (151, 141072), (302, 70536), (453, 47024), (604, 35268), (906, 23512), (1208, 17634), (1812, 11756), (2416, 8817), (2939, 7248), (3624, 5878)]