20171910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5557}}^1$

素因数の和:5589

約数の個数: 48

約数和(自身を含む): 53223408

約数和(自身を除く): 33051498

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 121, 165, 242, 330, 363, 605, 726, 1210, 1815, 3630, 5557, 11114, 16671, 27785, 33342, 55570, 61127, 83355, 122254, 166710, 183381, 305635, 366762, 611270, 672397, 916905, 1344794, 1833810, 2017191, 3361985, 4034382, 6723970, 10085955, 20171910]

約数ペア:

[(1, 20171910), (2, 10085955), (3, 6723970), (5, 4034382), (6, 3361985), (10, 2017191), (11, 1833810), (15, 1344794), (22, 916905), (30, 672397), (33, 611270), (55, 366762), (66, 305635), (110, 183381), (121, 166710), (165, 122254), (242, 83355), (330, 61127), (363, 55570), (605, 33342), (726, 27785), (1210, 16671), (1815, 11114), (3630, 5557)]