21447428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6883}}^1$

素因数の和:6947

約数の個数: 24

約数和(自身を含む): 40477920

約数和(自身を除く): 19030492

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6883, 13766, 27532, 130777, 261554, 282203, 523108, 564406, 1128812, 5361857, 10723714, 21447428]

約数ペア:

[(1, 21447428), (2, 10723714), (4, 5361857), (19, 1128812), (38, 564406), (41, 523108), (76, 282203), (82, 261554), (164, 130777), (779, 27532), (1558, 13766), (3116, 6883)]