21673845

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{887}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 38787840

約数和(自身を除く): 17113995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 887, 905, 1629, 2661, 2715, 4435, 4887, 7983, 8145, 13305, 23949, 24435, 39915, 119745, 160547, 481641, 802735, 1444923, 2408205, 4334769, 7224615, 21673845]

約数ペア:

[(1, 21673845), (3, 7224615), (5, 4334769), (9, 2408205), (15, 1444923), (27, 802735), (45, 481641), (135, 160547), (181, 119745), (543, 39915), (887, 24435), (905, 23949), (1629, 13305), (2661, 8145), (2715, 7983), (4435, 4887)]