21159937

素因数分解:

${\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 16

約数和(自身を含む): 22680000

約数和(自身を除く): 1520063

約数列:

[1, 29, 59, 83, 149, 1711, 2407, 4321, 4897, 8791, 12367, 142013, 254939, 358643, 729653, 21159937]

約数ペア:

[(1, 21159937), (29, 729653), (59, 358643), (83, 254939), (149, 142013), (1711, 12367), (2407, 8791), (4321, 4897)]