20557053

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:510

約数の個数: 36

約数和(自身を含む): 33473440

約数和(自身を除く): 12916387

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 439, 473, 1089, 1317, 1419, 3951, 4257, 4829, 5203, 14487, 15609, 18877, 43461, 46827, 53119, 56631, 159357, 169893, 207647, 478071, 622941, 1868823, 2284117, 6852351, 20557053]

約数ペア:

[(1, 20557053), (3, 6852351), (9, 2284117), (11, 1868823), (33, 622941), (43, 478071), (99, 207647), (121, 169893), (129, 159357), (363, 56631), (387, 53119), (439, 46827), (473, 43461), (1089, 18877), (1317, 15609), (1419, 14487), (3951, 5203), (4257, 4829)]