21787436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1427}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 41743296

約数和(自身を除く): 19955860

約数列:

[1, 2, 4, 11, 22, 44, 347, 694, 1388, 1427, 2854, 3817, 5708, 7634, 15268, 15697, 31394, 62788, 495169, 990338, 1980676, 5446859, 10893718, 21787436]

約数ペア:

[(1, 21787436), (2, 10893718), (4, 5446859), (11, 1980676), (22, 990338), (44, 495169), (347, 62788), (694, 31394), (1388, 15697), (1427, 15268), (2854, 7634), (3817, 5708)]