19704393

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 29357640

約数和(自身を除く): 9653247

約数列:

[1, 3, 9, 53, 101, 159, 303, 409, 477, 909, 1227, 3681, 5353, 16059, 21677, 41309, 48177, 65031, 123927, 195093, 371781, 2189377, 6568131, 19704393]

約数ペア:

[(1, 19704393), (3, 6568131), (9, 2189377), (53, 371781), (101, 195093), (159, 123927), (303, 65031), (409, 48177), (477, 41309), (909, 21677), (1227, 16059), (3681, 5353)]