21071778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38593}}^1$

素因数の和:38618

約数の個数: 32

約数和(自身を含む): 51870336

約数和(自身を除く): 30798558

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 38593, 77186, 115779, 231558, 270151, 501709, 540302, 810453, 1003418, 1505127, 1620906, 3010254, 3511963, 7023926, 10535889, 21071778]

約数ペア:

[(1, 21071778), (2, 10535889), (3, 7023926), (6, 3511963), (7, 3010254), (13, 1620906), (14, 1505127), (21, 1003418), (26, 810453), (39, 540302), (42, 501709), (78, 270151), (91, 231558), (182, 115779), (273, 77186), (546, 38593)]