21402486

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2879}}^1$

素因数の和:2953

約数の個数: 48

約数和(自身を含む): 53913600

約数和(自身を除く): 32511114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 59, 63, 118, 126, 177, 354, 413, 531, 826, 1062, 1239, 2478, 2879, 3717, 5758, 7434, 8637, 17274, 20153, 25911, 40306, 51822, 60459, 120918, 169861, 181377, 339722, 362754, 509583, 1019166, 1189027, 1528749, 2378054, 3057498, 3567081, 7134162, 10701243, 21402486]

約数ペア:

[(1, 21402486), (2, 10701243), (3, 7134162), (6, 3567081), (7, 3057498), (9, 2378054), (14, 1528749), (18, 1189027), (21, 1019166), (42, 509583), (59, 362754), (63, 339722), (118, 181377), (126, 169861), (177, 120918), (354, 60459), (413, 51822), (531, 40306), (826, 25911), (1062, 20153), (1239, 17274), (2478, 8637), (2879, 7434), (3717, 5758)]