20171851856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1589837}}^1$

素因数の和:1589919

約数の個数: 40

約数和(自身を含む): 42779360904

約数和(自身を除く): 22607509048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 3172, 6344, 12688, 1589837, 3179674, 6359348, 12718696, 20667881, 25437392, 41335762, 82671524, 96980057, 165343048, 193960114, 330686096, 387920228, 775840456, 1260740741, 1551680912, 2521481482, 5042962964, 10085925928, 20171851856]

約数ペア:

[(1, 20171851856), (2, 10085925928), (4, 5042962964), (8, 2521481482), (13, 1551680912), (16, 1260740741), (26, 775840456), (52, 387920228), (61, 330686096), (104, 193960114), (122, 165343048), (208, 96980057), (244, 82671524), (488, 41335762), (793, 25437392), (976, 20667881), (1586, 12718696), (3172, 6359348), (6344, 3179674), (12688, 1589837)]