18942735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 15893745

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 223, 669, 809, 1115, 1561, 2427, 3345, 4045, 4683, 5663, 7805, 12135, 16989, 23415, 28315, 84945, 180407, 541221, 902035, 1262849, 2706105, 3788547, 6314245, 18942735]

約数ペア:

[(1, 18942735), (3, 6314245), (5, 3788547), (7, 2706105), (15, 1262849), (21, 902035), (35, 541221), (105, 180407), (223, 84945), (669, 28315), (809, 23415), (1115, 16989), (1561, 12135), (2427, 7805), (3345, 5663), (4045, 4683)]