216937474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{21017}}^1$

素因数の和:21429

約数の個数: 16

約数和(自身を含む): 351336888

約数和(自身を除く): 134399414

約数列:

[1, 2, 13, 26, 397, 794, 5161, 10322, 21017, 42034, 273221, 546442, 8343749, 16687498, 108468737, 216937474]

約数ペア:

[(1, 216937474), (2, 108468737), (13, 16687498), (26, 8343749), (397, 546442), (794, 273221), (5161, 42034), (10322, 21017)]