21955384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{719}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 23145416

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 347, 694, 719, 1388, 1438, 2776, 2876, 3817, 5752, 7634, 7909, 15268, 15818, 30536, 31636, 63272, 249493, 498986, 997972, 1995944, 2744423, 5488846, 10977692, 21955384]

約数ペア:

[(1, 21955384), (2, 10977692), (4, 5488846), (8, 2744423), (11, 1995944), (22, 997972), (44, 498986), (88, 249493), (347, 63272), (694, 31636), (719, 30536), (1388, 15818), (1438, 15268), (2776, 7909), (2876, 7634), (3817, 5752)]