20974432

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 21890768

約数列:

[1, 2, 4, 8, 16, 32, 53, 83, 106, 149, 166, 212, 298, 332, 424, 596, 664, 848, 1192, 1328, 1696, 2384, 2656, 4399, 4768, 7897, 8798, 12367, 15794, 17596, 24734, 31588, 35192, 49468, 63176, 70384, 98936, 126352, 140768, 197872, 252704, 395744, 655451, 1310902, 2621804, 5243608, 10487216, 20974432]

約数ペア:

[(1, 20974432), (2, 10487216), (4, 5243608), (8, 2621804), (16, 1310902), (32, 655451), (53, 395744), (83, 252704), (106, 197872), (149, 140768), (166, 126352), (212, 98936), (298, 70384), (332, 63176), (424, 49468), (596, 35192), (664, 31588), (848, 24734), (1192, 17596), (1328, 15794), (1696, 12367), (2384, 8798), (2656, 7897), (4399, 4768)]