19919704

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1567}}^1$

素因数の和:1807

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 22980776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1567, 1589, 1816, 3134, 3178, 6268, 6356, 10969, 12536, 12712, 21938, 43876, 87752, 355709, 711418, 1422836, 2489963, 2845672, 4979926, 9959852, 19919704]

約数ペア:

[(1, 19919704), (2, 9959852), (4, 4979926), (7, 2845672), (8, 2489963), (14, 1422836), (28, 711418), (56, 355709), (227, 87752), (454, 43876), (908, 21938), (1567, 12712), (1589, 12536), (1816, 10969), (3134, 6356), (3178, 6268)]