19917156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1867}}^1$

素因数の和:2008

約数の個数: 48

約数和(自身を含む): 53559296

約数和(自身を除く): 33642140

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 127, 254, 381, 508, 762, 889, 1524, 1778, 1867, 2667, 3556, 3734, 5334, 5601, 7468, 10668, 11202, 13069, 22404, 26138, 39207, 52276, 78414, 156828, 237109, 474218, 711327, 948436, 1422654, 1659763, 2845308, 3319526, 4979289, 6639052, 9958578, 19917156]

約数ペア:

[(1, 19917156), (2, 9958578), (3, 6639052), (4, 4979289), (6, 3319526), (7, 2845308), (12, 1659763), (14, 1422654), (21, 948436), (28, 711327), (42, 474218), (84, 237109), (127, 156828), (254, 78414), (381, 52276), (508, 39207), (762, 26138), (889, 22404), (1524, 13069), (1778, 11202), (1867, 10668), (2667, 7468), (3556, 5601), (3734, 5334)]