21399056

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11239}}^1$

素因数の和:11271

約数の個数: 40

約数和(自身を含む): 50175360

約数和(自身を除く): 28776304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11239, 22478, 44956, 78673, 89912, 157346, 179824, 191063, 314692, 382126, 629384, 764252, 1258768, 1337441, 1528504, 2674882, 3057008, 5349764, 10699528, 21399056]

約数ペア:

[(1, 21399056), (2, 10699528), (4, 5349764), (7, 3057008), (8, 2674882), (14, 1528504), (16, 1337441), (17, 1258768), (28, 764252), (34, 629384), (56, 382126), (68, 314692), (112, 191063), (119, 179824), (136, 157346), (238, 89912), (272, 78673), (476, 44956), (952, 22478), (1904, 11239)]