21611421

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2677}}^1$

素因数の和:2722

約数の個数: 32

約数和(自身を含む): 35992320

約数和(自身を除く): 14380899

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2677, 2691, 8031, 8073, 24093, 34801, 61571, 72279, 104403, 184713, 313209, 554139, 800423, 939627, 1662417, 2401269, 7203807, 21611421]

約数ペア:

[(1, 21611421), (3, 7203807), (9, 2401269), (13, 1662417), (23, 939627), (27, 800423), (39, 554139), (69, 313209), (117, 184713), (207, 104403), (299, 72279), (351, 61571), (621, 34801), (897, 24093), (2677, 8073), (2691, 8031)]