19890494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 33699456

約数和(自身を除く): 13808962

約数列:

[1, 2, 13, 26, 41, 47, 82, 94, 397, 533, 611, 794, 1066, 1222, 1927, 3854, 5161, 10322, 16277, 18659, 25051, 32554, 37318, 50102, 211601, 242567, 423202, 485134, 765019, 1530038, 9945247, 19890494]

約数ペア:

[(1, 19890494), (2, 9945247), (13, 1530038), (26, 765019), (41, 485134), (47, 423202), (82, 242567), (94, 211601), (397, 50102), (533, 37318), (611, 32554), (794, 25051), (1066, 18659), (1222, 16277), (1927, 10322), (3854, 5161)]