21238044

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 51448320

約数和(自身を除く): 30210276

約数列:

[1, 2, 3, 4, 6, 12, 43, 79, 86, 129, 158, 172, 237, 258, 316, 474, 516, 521, 948, 1042, 1563, 2084, 3126, 3397, 6252, 6794, 10191, 13588, 20382, 22403, 40764, 41159, 44806, 67209, 82318, 89612, 123477, 134418, 164636, 246954, 268836, 493908, 1769837, 3539674, 5309511, 7079348, 10619022, 21238044]

約数ペア:

[(1, 21238044), (2, 10619022), (3, 7079348), (4, 5309511), (6, 3539674), (12, 1769837), (43, 493908), (79, 268836), (86, 246954), (129, 164636), (158, 134418), (172, 123477), (237, 89612), (258, 82318), (316, 67209), (474, 44806), (516, 41159), (521, 40764), (948, 22403), (1042, 20382), (1563, 13588), (2084, 10191), (3126, 6794), (3397, 6252)]