18551390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12973}}^1$

素因数の和:13004

約数の個数: 32

約数和(自身を含む): 39233376

約数和(自身を除く): 20681986

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 12973, 25946, 64865, 129730, 142703, 168649, 285406, 337298, 713515, 843245, 1427030, 1686490, 1855139, 3710278, 9275695, 18551390]

約数ペア:

[(1, 18551390), (2, 9275695), (5, 3710278), (10, 1855139), (11, 1686490), (13, 1427030), (22, 843245), (26, 713515), (55, 337298), (65, 285406), (110, 168649), (130, 142703), (143, 129730), (286, 64865), (715, 25946), (1430, 12973)]