19470736

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 39309984

約数和(自身を除く): 19839248

約数列:

[1, 2, 4, 8, 16, 41, 67, 82, 134, 164, 268, 328, 443, 536, 656, 886, 1072, 1772, 2747, 3544, 5494, 7088, 10988, 18163, 21976, 29681, 36326, 43952, 59362, 72652, 118724, 145304, 237448, 290608, 474896, 1216921, 2433842, 4867684, 9735368, 19470736]

約数ペア:

[(1, 19470736), (2, 9735368), (4, 4867684), (8, 2433842), (16, 1216921), (41, 474896), (67, 290608), (82, 237448), (134, 145304), (164, 118724), (268, 72652), (328, 59362), (443, 43952), (536, 36326), (656, 29681), (886, 21976), (1072, 18163), (1772, 10988), (2747, 7088), (3544, 5494)]