21371844

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136999}}^1$

素因数の和:137019

約数の個数: 24

約数和(自身を含む): 53704000

約数和(自身を除く): 32332156

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136999, 273998, 410997, 547996, 821994, 1643988, 1780987, 3561974, 5342961, 7123948, 10685922, 21371844]

約数ペア:

[(1, 21371844), (2, 10685922), (3, 7123948), (4, 5342961), (6, 3561974), (12, 1780987), (13, 1643988), (26, 821994), (39, 547996), (52, 410997), (78, 273998), (156, 136999)]