20389212

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2659}}^1$

素因数の和:2743

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 33236388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2659, 3834, 5318, 7668, 7977, 10636, 15954, 23931, 31908, 47862, 71793, 95724, 143586, 188789, 287172, 377578, 566367, 755156, 1132734, 1699101, 2265468, 3398202, 5097303, 6796404, 10194606, 20389212]

約数ペア:

[(1, 20389212), (2, 10194606), (3, 6796404), (4, 5097303), (6, 3398202), (9, 2265468), (12, 1699101), (18, 1132734), (27, 755156), (36, 566367), (54, 377578), (71, 287172), (108, 188789), (142, 143586), (213, 95724), (284, 71793), (426, 47862), (639, 31908), (852, 23931), (1278, 15954), (1917, 10636), (2556, 7977), (2659, 7668), (3834, 5318)]