663832

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 1350540

約数和(自身を除く): 686708

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 491, 676, 982, 1352, 1964, 3928, 6383, 12766, 25532, 51064, 82979, 165958, 331916, 663832]

約数ペア:

[(1, 663832), (2, 331916), (4, 165958), (8, 82979), (13, 51064), (26, 25532), (52, 12766), (104, 6383), (169, 3928), (338, 1964), (491, 1352), (676, 982)]