19180665

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20297}}^1$

素因数の和:20318

約数の個数: 32

約数和(自身を含む): 38972160

約数和(自身を除く): 19791495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20297, 60891, 101485, 142079, 182673, 304455, 426237, 548019, 710395, 913365, 1278711, 2131185, 2740095, 3836133, 6393555, 19180665]

約数ペア:

[(1, 19180665), (3, 6393555), (5, 3836133), (7, 2740095), (9, 2131185), (15, 1278711), (21, 913365), (27, 710395), (35, 548019), (45, 426237), (63, 304455), (105, 182673), (135, 142079), (189, 101485), (315, 60891), (945, 20297)]