18864555

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 31337280

約数和(自身を除く): 12472725

約数列:

[1, 3, 5, 15, 53, 61, 159, 183, 265, 305, 389, 795, 915, 1167, 1945, 3233, 5835, 9699, 16165, 20617, 23729, 48495, 61851, 71187, 103085, 118645, 309255, 355935, 1257637, 3772911, 6288185, 18864555]

約数ペア:

[(1, 18864555), (3, 6288185), (5, 3772911), (15, 1257637), (53, 355935), (61, 309255), (159, 118645), (183, 103085), (265, 71187), (305, 61851), (389, 48495), (795, 23729), (915, 20617), (1167, 16165), (1945, 9699), (3233, 5835)]