20903135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 8369185

約数列:

[1, 5, 11, 19, 55, 83, 95, 209, 241, 415, 913, 1045, 1205, 1577, 2651, 4565, 4579, 7885, 13255, 17347, 20003, 22895, 50369, 86735, 100015, 220033, 251845, 380057, 1100165, 1900285, 4180627, 20903135]

約数ペア:

[(1, 20903135), (5, 4180627), (11, 1900285), (19, 1100165), (55, 380057), (83, 251845), (95, 220033), (209, 100015), (241, 86735), (415, 50369), (913, 22895), (1045, 20003), (1205, 17347), (1577, 13255), (2651, 7885), (4565, 4579)]