20191617

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:433

約数の個数: 24

約数和(自身を含む): 29888040

約数和(自身を除く): 9696423

約数列:

[1, 3, 9, 97, 101, 229, 291, 303, 687, 873, 909, 2061, 9797, 22213, 23129, 29391, 66639, 69387, 88173, 199917, 208161, 2243513, 6730539, 20191617]

約数ペア:

[(1, 20191617), (3, 6730539), (9, 2243513), (97, 208161), (101, 199917), (229, 88173), (291, 69387), (303, 66639), (687, 29391), (873, 23129), (909, 22213), (2061, 9797)]