21000901340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1597}}^1\times {\mathrm{9007}}^1$

素因数の和:10686

約数の個数: 48

約数和(自身を含む): 44738988672

約数和(自身を除く): 23738087332

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 1597, 3194, 6388, 7985, 9007, 15970, 18014, 31940, 36028, 45035, 90070, 116581, 180140, 233162, 466324, 582905, 657511, 1165810, 1315022, 2331620, 2630044, 3287555, 6575110, 13150220, 14384179, 28768358, 57536716, 71920895, 143841790, 287683580, 1050045067, 2100090134, 4200180268, 5250225335, 10500450670, 21000901340]

約数ペア:

[(1, 21000901340), (2, 10500450670), (4, 5250225335), (5, 4200180268), (10, 2100090134), (20, 1050045067), (73, 287683580), (146, 143841790), (292, 71920895), (365, 57536716), (730, 28768358), (1460, 14384179), (1597, 13150220), (3194, 6575110), (6388, 3287555), (7985, 2630044), (9007, 2331620), (15970, 1315022), (18014, 1165810), (31940, 657511), (36028, 582905), (45035, 466324), (90070, 233162), (116581, 180140)]