19135870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^4\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 40

約数和(自身を含む): 37871784

約数和(自身を除く): 18735914

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 169, 335, 338, 670, 845, 871, 1690, 1742, 2197, 4355, 4394, 8710, 10985, 11323, 21970, 22646, 28561, 56615, 57122, 113230, 142805, 147199, 285610, 294398, 735995, 1471990, 1913587, 3827174, 9567935, 19135870]

約数ペア:

[(1, 19135870), (2, 9567935), (5, 3827174), (10, 1913587), (13, 1471990), (26, 735995), (65, 294398), (67, 285610), (130, 147199), (134, 142805), (169, 113230), (335, 57122), (338, 56615), (670, 28561), (845, 22646), (871, 21970), (1690, 11323), (1742, 10985), (2197, 8710), (4355, 4394)]