16781013

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:247

約数の個数: 40

約数和(自身を含む): 26670336

約数和(自身を除く): 9889323

約数列:

[1, 3, 9, 27, 31, 41, 81, 93, 123, 163, 279, 369, 489, 837, 1107, 1271, 1467, 2511, 3321, 3813, 4401, 5053, 6683, 11439, 13203, 15159, 20049, 34317, 45477, 60147, 102951, 136431, 180441, 207173, 409293, 541323, 621519, 1864557, 5593671, 16781013]

約数ペア:

[(1, 16781013), (3, 5593671), (9, 1864557), (27, 621519), (31, 541323), (41, 409293), (81, 207173), (93, 180441), (123, 136431), (163, 102951), (279, 60147), (369, 45477), (489, 34317), (837, 20049), (1107, 15159), (1271, 13203), (1467, 11439), (2511, 6683), (3321, 5053), (3813, 4401)]