21280698

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10651}}^1$

素因数の和:10699

約数の個数: 32

約数和(自身を含む): 48573120

約数和(自身を除く): 27292422

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10651, 21302, 31953, 63906, 95859, 191718, 287577, 394087, 575154, 788174, 1182261, 2364522, 3546783, 7093566, 10640349, 21280698]

約数ペア:

[(1, 21280698), (2, 10640349), (3, 7093566), (6, 3546783), (9, 2364522), (18, 1182261), (27, 788174), (37, 575154), (54, 394087), (74, 287577), (111, 191718), (222, 95859), (333, 63906), (666, 31953), (999, 21302), (1998, 10651)]