19390878

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 45601920

約数和(自身を除く): 26211042

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 173, 234, 346, 479, 519, 958, 1038, 1437, 1557, 2249, 2874, 3114, 4311, 4498, 6227, 6747, 8622, 12454, 13494, 18681, 20241, 37362, 40482, 56043, 82867, 112086, 165734, 248601, 497202, 745803, 1077271, 1491606, 2154542, 3231813, 6463626, 9695439, 19390878]

約数ペア:

[(1, 19390878), (2, 9695439), (3, 6463626), (6, 3231813), (9, 2154542), (13, 1491606), (18, 1077271), (26, 745803), (39, 497202), (78, 248601), (117, 165734), (173, 112086), (234, 82867), (346, 56043), (479, 40482), (519, 37362), (958, 20241), (1038, 18681), (1437, 13494), (1557, 12454), (2249, 8622), (2874, 6747), (3114, 6227), (4311, 4498)]