20042178

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1258

約数の個数: 32

約数和(自身を含む): 43376256

約数和(自身を除く): 23334078

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263, 526, 789, 977, 1578, 1954, 2931, 3419, 5862, 6838, 10257, 12701, 20514, 25402, 38103, 76206, 256951, 513902, 770853, 1541706, 3340363, 6680726, 10021089, 20042178]

約数ペア:

[(1, 20042178), (2, 10021089), (3, 6680726), (6, 3340363), (13, 1541706), (26, 770853), (39, 513902), (78, 256951), (263, 76206), (526, 38103), (789, 25402), (977, 20514), (1578, 12701), (1954, 10257), (2931, 6838), (3419, 5862)]