221421685

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:5013

約数の個数: 24

約数和(自身を含む): 291419136

約数和(自身を除く): 69997451

約数列:

[1, 5, 17, 31, 85, 155, 289, 527, 1445, 2635, 4943, 8959, 24715, 44795, 84031, 153233, 420155, 766165, 1428527, 2604961, 7142635, 13024805, 44284337, 221421685]

約数ペア:

[(1, 221421685), (5, 44284337), (17, 13024805), (31, 7142635), (85, 2604961), (155, 1428527), (289, 766165), (527, 420155), (1445, 153233), (2635, 84031), (4943, 44795), (8959, 24715)]