21533679

素因数分解:

$3^2\times {\mathrm{17}}^3\times {\mathrm{487}}^1$

素因数の和:544

約数の個数: 24

約数和(自身を含む): 33115680

約数和(自身を除く): 11582001

約数列:

[1, 3, 9, 17, 51, 153, 289, 487, 867, 1461, 2601, 4383, 4913, 8279, 14739, 24837, 44217, 74511, 140743, 422229, 1266687, 2392631, 7177893, 21533679]

約数ペア:

[(1, 21533679), (3, 7177893), (9, 2392631), (17, 1266687), (51, 422229), (153, 140743), (289, 74511), (487, 44217), (867, 24837), (1461, 14739), (2601, 8279), (4383, 4913)]