21451452

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 54993792

約数和(自身を除く): 33542340

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 163, 326, 489, 652, 978, 997, 1793, 1956, 1994, 2991, 3586, 3988, 5379, 5982, 7172, 10758, 10967, 11964, 21516, 21934, 32901, 43868, 65802, 131604, 162511, 325022, 487533, 650044, 975066, 1787621, 1950132, 3575242, 5362863, 7150484, 10725726, 21451452]

約数ペア:

[(1, 21451452), (2, 10725726), (3, 7150484), (4, 5362863), (6, 3575242), (11, 1950132), (12, 1787621), (22, 975066), (33, 650044), (44, 487533), (66, 325022), (132, 162511), (163, 131604), (326, 65802), (489, 43868), (652, 32901), (978, 21934), (997, 21516), (1793, 11964), (1956, 10967), (1994, 10758), (2991, 7172), (3586, 5982), (3988, 5379)]