20557935

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{773}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 36780480

約数和(自身を除く): 16222545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 773, 985, 1773, 2319, 2955, 3865, 5319, 6957, 8865, 11595, 20871, 26595, 34785, 104355, 152281, 456843, 761405, 1370529, 2284215, 4111587, 6852645, 20557935]

約数ペア:

[(1, 20557935), (3, 6852645), (5, 4111587), (9, 2284215), (15, 1370529), (27, 761405), (45, 456843), (135, 152281), (197, 104355), (591, 34785), (773, 26595), (985, 20871), (1773, 11595), (2319, 8865), (2955, 6957), (3865, 5319)]