20921706

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29803}}^1$

素因数の和:29827

約数の個数: 32

約数和(自身を含む): 50070720

約数和(自身を除く): 29149014

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702, 29803, 59606, 89409, 178818, 268227, 387439, 536454, 774878, 804681, 1162317, 1609362, 2324634, 3486951, 6973902, 10460853, 20921706]

約数ペア:

[(1, 20921706), (2, 10460853), (3, 6973902), (6, 3486951), (9, 2324634), (13, 1609362), (18, 1162317), (26, 804681), (27, 774878), (39, 536454), (54, 387439), (78, 268227), (117, 178818), (234, 89409), (351, 59606), (702, 29803)]