21405816

素因数分解:

$2^3\times 3^3\times {\mathrm{113}}^1\times {\mathrm{877}}^1$

素因数の和:1005

約数の個数: 64

約数和(自身を含む): 60055200

約数和(自身を除く): 38649384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 113, 216, 226, 339, 452, 678, 877, 904, 1017, 1356, 1754, 2034, 2631, 2712, 3051, 3508, 4068, 5262, 6102, 7016, 7893, 8136, 10524, 12204, 15786, 21048, 23679, 24408, 31572, 47358, 63144, 94716, 99101, 189432, 198202, 297303, 396404, 594606, 792808, 891909, 1189212, 1783818, 2378424, 2675727, 3567636, 5351454, 7135272, 10702908, 21405816]

約数ペア:

[(1, 21405816), (2, 10702908), (3, 7135272), (4, 5351454), (6, 3567636), (8, 2675727), (9, 2378424), (12, 1783818), (18, 1189212), (24, 891909), (27, 792808), (36, 594606), (54, 396404), (72, 297303), (108, 198202), (113, 189432), (216, 99101), (226, 94716), (339, 63144), (452, 47358), (678, 31572), (877, 24408), (904, 23679), (1017, 21048), (1356, 15786), (1754, 12204), (2034, 10524), (2631, 8136), (2712, 7893), (3051, 7016), (3508, 6102), (4068, 5262)]