21918896

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 44476320

約数和(自身を除く): 22557424

約数列:

[1, 2, 4, 8, 16, 29, 58, 97, 116, 194, 232, 388, 464, 487, 776, 974, 1552, 1948, 2813, 3896, 5626, 7792, 11252, 14123, 22504, 28246, 45008, 47239, 56492, 94478, 112984, 188956, 225968, 377912, 755824, 1369931, 2739862, 5479724, 10959448, 21918896]

約数ペア:

[(1, 21918896), (2, 10959448), (4, 5479724), (8, 2739862), (16, 1369931), (29, 755824), (58, 377912), (97, 225968), (116, 188956), (194, 112984), (232, 94478), (388, 56492), (464, 47239), (487, 45008), (776, 28246), (974, 22504), (1552, 14123), (1948, 11252), (2813, 7792), (3896, 5626)]