18672665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 7765735

約数列:

[1, 5, 11, 23, 29, 55, 115, 145, 253, 319, 509, 667, 1265, 1595, 2545, 3335, 5599, 7337, 11707, 14761, 27995, 36685, 58535, 73805, 128777, 162371, 339503, 643885, 811855, 1697515, 3734533, 18672665]

約数ペア:

[(1, 18672665), (5, 3734533), (11, 1697515), (23, 811855), (29, 643885), (55, 339503), (115, 162371), (145, 128777), (253, 73805), (319, 58535), (509, 36685), (667, 27995), (1265, 14761), (1595, 11707), (2545, 7337), (3335, 5599)]