21116316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 53387264

約数和(自身を除く): 32270948

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 223, 446, 607, 669, 892, 1214, 1338, 1821, 2428, 2676, 2899, 3642, 5798, 7284, 7891, 8697, 11596, 15782, 17394, 23673, 31564, 34788, 47346, 94692, 135361, 270722, 406083, 541444, 812166, 1624332, 1759693, 3519386, 5279079, 7038772, 10558158, 21116316]

約数ペア:

[(1, 21116316), (2, 10558158), (3, 7038772), (4, 5279079), (6, 3519386), (12, 1759693), (13, 1624332), (26, 812166), (39, 541444), (52, 406083), (78, 270722), (156, 135361), (223, 94692), (446, 47346), (607, 34788), (669, 31564), (892, 23673), (1214, 17394), (1338, 15782), (1821, 11596), (2428, 8697), (2676, 7891), (2899, 7284), (3642, 5798)]