20486355

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 33950016

約数和(自身を除く): 13463661

約数列:

[1, 3, 5, 15, 53, 73, 159, 219, 265, 353, 365, 795, 1059, 1095, 1765, 3869, 5295, 11607, 18709, 19345, 25769, 56127, 58035, 77307, 93545, 128845, 280635, 386535, 1365757, 4097271, 6828785, 20486355]

約数ペア:

[(1, 20486355), (3, 6828785), (5, 4097271), (15, 1365757), (53, 386535), (73, 280635), (159, 128845), (219, 93545), (265, 77307), (353, 58035), (365, 56127), (795, 25769), (1059, 19345), (1095, 18709), (1765, 11607), (3869, 5295)]