21685776

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{277}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 64531584

約数和(自身を除く): 42845808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 233, 277, 336, 466, 554, 699, 831, 932, 1108, 1398, 1631, 1662, 1864, 1939, 2216, 2796, 3262, 3324, 3728, 3878, 4432, 4893, 5592, 5817, 6524, 6648, 7756, 9786, 11184, 11634, 13048, 13296, 15512, 19572, 23268, 26096, 31024, 39144, 46536, 64541, 78288, 93072, 129082, 193623, 258164, 387246, 451787, 516328, 774492, 903574, 1032656, 1355361, 1548984, 1807148, 2710722, 3097968, 3614296, 5421444, 7228592, 10842888, 21685776]

約数ペア:

[(1, 21685776), (2, 10842888), (3, 7228592), (4, 5421444), (6, 3614296), (7, 3097968), (8, 2710722), (12, 1807148), (14, 1548984), (16, 1355361), (21, 1032656), (24, 903574), (28, 774492), (42, 516328), (48, 451787), (56, 387246), (84, 258164), (112, 193623), (168, 129082), (233, 93072), (277, 78288), (336, 64541), (466, 46536), (554, 39144), (699, 31024), (831, 26096), (932, 23268), (1108, 19572), (1398, 15512), (1631, 13296), (1662, 13048), (1864, 11634), (1939, 11184), (2216, 9786), (2796, 7756), (3262, 6648), (3324, 6524), (3728, 5817), (3878, 5592), (4432, 4893)]