21782655

素因数分解:

$3^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{509}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 38923200

約数和(自身を除く): 17140545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 317, 509, 951, 1527, 1585, 2545, 2853, 4581, 4755, 7635, 8559, 13743, 14265, 22905, 42795, 68715, 161353, 484059, 806765, 1452177, 2420295, 4356531, 7260885, 21782655]

約数ペア:

[(1, 21782655), (3, 7260885), (5, 4356531), (9, 2420295), (15, 1452177), (27, 806765), (45, 484059), (135, 161353), (317, 68715), (509, 42795), (951, 22905), (1527, 14265), (1585, 13743), (2545, 8559), (2853, 7635), (4581, 4755)]