21218418

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{90677}}^1$

素因数の和:90698

約数の個数: 24

約数和(自身を含む): 49510188

約数和(自身を除く): 28291770

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 90677, 181354, 272031, 544062, 816093, 1178801, 1632186, 2357602, 3536403, 7072806, 10609209, 21218418]

約数ペア:

[(1, 21218418), (2, 10609209), (3, 7072806), (6, 3536403), (9, 2357602), (13, 1632186), (18, 1178801), (26, 816093), (39, 544062), (78, 272031), (117, 181354), (234, 90677)]