18842411

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 22924944

約数和(自身を除く): 4082533

約数列:

[1, 7, 41, 49, 83, 113, 287, 581, 791, 2009, 3403, 4067, 4633, 5537, 9379, 23821, 32431, 65653, 166747, 227017, 384539, 459571, 2691773, 18842411]

約数ペア:

[(1, 18842411), (7, 2691773), (41, 459571), (49, 384539), (83, 227017), (113, 166747), (287, 65653), (581, 32431), (791, 23821), (2009, 9379), (3403, 5537), (4067, 4633)]