21521110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8713}}^1$

素因数の和:8752

約数の個数: 32

約数和(自身を含む): 43918560

約数和(自身を除く): 22397450

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8713, 17426, 43565, 87130, 113269, 165547, 226538, 331094, 566345, 827735, 1132690, 1655470, 2152111, 4304222, 10760555, 21521110]

約数ペア:

[(1, 21521110), (2, 10760555), (5, 4304222), (10, 2152111), (13, 1655470), (19, 1132690), (26, 827735), (38, 566345), (65, 331094), (95, 226538), (130, 165547), (190, 113269), (247, 87130), (494, 43565), (1235, 17426), (2470, 8713)]