19860428

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6277}}^1$

素因数の和:6401

約数の個数: 24

約数和(自身を含む): 40078752

約数和(自身を除く): 20218324

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6277, 12554, 25108, 43939, 87878, 175756, 709301, 1418602, 2837204, 4965107, 9930214, 19860428]

約数ペア:

[(1, 19860428), (2, 9930214), (4, 4965107), (7, 2837204), (14, 1418602), (28, 709301), (113, 175756), (226, 87878), (452, 43939), (791, 25108), (1582, 12554), (3164, 6277)]