21603621

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 10910427

約数列:

[1, 3, 13, 31, 39, 93, 107, 167, 321, 403, 501, 1209, 1391, 2171, 3317, 4173, 5177, 6513, 9951, 15531, 17869, 43121, 53607, 67301, 129363, 201903, 232297, 553939, 696891, 1661817, 7201207, 21603621]

約数ペア:

[(1, 21603621), (3, 7201207), (13, 1661817), (31, 696891), (39, 553939), (93, 232297), (107, 201903), (167, 129363), (321, 67301), (403, 53607), (501, 43121), (1209, 17869), (1391, 15531), (2171, 9951), (3317, 6513), (4173, 5177)]