21220644

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 52532480

約数和(自身を除く): 31311836

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 163, 228, 326, 489, 571, 652, 978, 1142, 1713, 1956, 2284, 3097, 3426, 6194, 6852, 9291, 10849, 12388, 18582, 21698, 32547, 37164, 43396, 65094, 93073, 130188, 186146, 279219, 372292, 558438, 1116876, 1768387, 3536774, 5305161, 7073548, 10610322, 21220644]

約数ペア:

[(1, 21220644), (2, 10610322), (3, 7073548), (4, 5305161), (6, 3536774), (12, 1768387), (19, 1116876), (38, 558438), (57, 372292), (76, 279219), (114, 186146), (163, 130188), (228, 93073), (326, 65094), (489, 43396), (571, 37164), (652, 32547), (978, 21698), (1142, 18582), (1713, 12388), (1956, 10849), (2284, 9291), (3097, 6852), (3426, 6194)]