19814275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1487}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 27123264

約数和(自身を除く): 7308989

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 1487, 2665, 7435, 13325, 19331, 37175, 60967, 96655, 304835, 483275, 792571, 1524175, 3962855, 19814275]

約数ペア:

[(1, 19814275), (5, 3962855), (13, 1524175), (25, 792571), (41, 483275), (65, 304835), (205, 96655), (325, 60967), (533, 37175), (1025, 19331), (1487, 13325), (2665, 7435)]