21201892

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2803}}^1$

素因数の和:2899

約数の個数: 24

約数和(自身を含む): 38941952

約数和(自身を除く): 17740060

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2803, 3782, 5606, 7564, 11212, 86893, 170983, 173786, 341966, 347572, 683932, 5300473, 10600946, 21201892]

約数ペア:

[(1, 21201892), (2, 10600946), (4, 5300473), (31, 683932), (61, 347572), (62, 341966), (122, 173786), (124, 170983), (244, 86893), (1891, 11212), (2803, 7564), (3782, 5606)]