20739924

素因数分解:

$2^2\times 3^2\times {\mathrm{389}}^1\times {\mathrm{1481}}^1$

素因数の和:1880

約数の個数: 36

約数和(自身を含む): 52596180

約数和(自身を除く): 31856256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 389, 778, 1167, 1481, 1556, 2334, 2962, 3501, 4443, 4668, 5924, 7002, 8886, 13329, 14004, 17772, 26658, 53316, 576109, 1152218, 1728327, 2304436, 3456654, 5184981, 6913308, 10369962, 20739924]

約数ペア:

[(1, 20739924), (2, 10369962), (3, 6913308), (4, 5184981), (6, 3456654), (9, 2304436), (12, 1728327), (18, 1152218), (36, 576109), (389, 53316), (778, 26658), (1167, 17772), (1481, 14004), (1556, 13329), (2334, 8886), (2962, 7002), (3501, 5924), (4443, 4668)]