204480213

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137143}}^1$

素因数の和:137224

約数の個数: 16

約数和(自身を含む): 315979776

約数和(自身を除く): 111499563

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 137143, 411429, 960001, 2880003, 9737153, 29211459, 68160071, 204480213]

約数ペア:

[(1, 204480213), (3, 68160071), (7, 29211459), (21, 9737153), (71, 2880003), (213, 960001), (497, 411429), (1491, 137143)]