21665748

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138883}}^1$

素因数の和:138903

約数の個数: 24

約数和(自身を含む): 54442528

約数和(自身を除く): 32776780

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138883, 277766, 416649, 555532, 833298, 1666596, 1805479, 3610958, 5416437, 7221916, 10832874, 21665748]

約数ペア:

[(1, 21665748), (2, 10832874), (3, 7221916), (4, 5416437), (6, 3610958), (12, 1805479), (13, 1666596), (26, 833298), (39, 555532), (52, 416649), (78, 277766), (156, 138883)]