20135511

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 14009769

約数列:

[1, 3, 9, 11, 23, 33, 37, 69, 99, 111, 207, 239, 253, 333, 407, 717, 759, 851, 1221, 2151, 2277, 2553, 2629, 3663, 5497, 7659, 7887, 8843, 9361, 16491, 23661, 26529, 28083, 49473, 60467, 79587, 84249, 97273, 181401, 203389, 291819, 544203, 610167, 875457, 1830501, 2237279, 6711837, 20135511]

約数ペア:

[(1, 20135511), (3, 6711837), (9, 2237279), (11, 1830501), (23, 875457), (33, 610167), (37, 544203), (69, 291819), (99, 203389), (111, 181401), (207, 97273), (239, 84249), (253, 79587), (333, 60467), (407, 49473), (717, 28083), (759, 26529), (851, 23661), (1221, 16491), (2151, 9361), (2277, 8843), (2553, 7887), (2629, 7659), (3663, 5497)]