21603323

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 26627328

約数和(自身を除く): 5024005

約数列:

[1, 7, 19, 83, 103, 133, 361, 581, 721, 1577, 1957, 2527, 8549, 11039, 13699, 29963, 37183, 59843, 162431, 209741, 260281, 1137017, 3086189, 21603323]

約数ペア:

[(1, 21603323), (7, 3086189), (19, 1137017), (83, 260281), (103, 209741), (133, 162431), (361, 59843), (581, 37183), (721, 29963), (1577, 13699), (1957, 11039), (2527, 8549)]