21642904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{683}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 43215120

約数和(自身を除く): 21572216

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 233, 466, 683, 932, 1366, 1864, 2732, 3961, 5464, 7922, 11611, 15844, 23222, 31688, 46444, 92888, 159139, 318278, 636556, 1273112, 2705363, 5410726, 10821452, 21642904]

約数ペア:

[(1, 21642904), (2, 10821452), (4, 5410726), (8, 2705363), (17, 1273112), (34, 636556), (68, 318278), (136, 159139), (233, 92888), (466, 46444), (683, 31688), (932, 23222), (1366, 15844), (1864, 11611), (2732, 7922), (3961, 5464)]