21262648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 47005920

約数和(自身を除く): 25743272

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 61, 68, 88, 122, 136, 187, 233, 244, 374, 466, 488, 671, 748, 932, 1037, 1342, 1496, 1864, 2074, 2563, 2684, 3961, 4148, 5126, 5368, 7922, 8296, 10252, 11407, 14213, 15844, 20504, 22814, 28426, 31688, 43571, 45628, 56852, 87142, 91256, 113704, 156343, 174284, 241621, 312686, 348568, 483242, 625372, 966484, 1250744, 1932968, 2657831, 5315662, 10631324, 21262648]

約数ペア:

[(1, 21262648), (2, 10631324), (4, 5315662), (8, 2657831), (11, 1932968), (17, 1250744), (22, 966484), (34, 625372), (44, 483242), (61, 348568), (68, 312686), (88, 241621), (122, 174284), (136, 156343), (187, 113704), (233, 91256), (244, 87142), (374, 56852), (466, 45628), (488, 43571), (671, 31688), (748, 28426), (932, 22814), (1037, 20504), (1342, 15844), (1496, 14213), (1864, 11407), (2074, 10252), (2563, 8296), (2684, 7922), (3961, 5368), (4148, 5126)]