21264684

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1699}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 57120000

約数和(自身を除く): 35855316

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 149, 298, 447, 596, 894, 1043, 1699, 1788, 2086, 3129, 3398, 4172, 5097, 6258, 6796, 10194, 11893, 12516, 20388, 23786, 35679, 47572, 71358, 142716, 253151, 506302, 759453, 1012604, 1518906, 1772057, 3037812, 3544114, 5316171, 7088228, 10632342, 21264684]

約数ペア:

[(1, 21264684), (2, 10632342), (3, 7088228), (4, 5316171), (6, 3544114), (7, 3037812), (12, 1772057), (14, 1518906), (21, 1012604), (28, 759453), (42, 506302), (84, 253151), (149, 142716), (298, 71358), (447, 47572), (596, 35679), (894, 23786), (1043, 20388), (1699, 12516), (1788, 11893), (2086, 10194), (3129, 6796), (3398, 6258), (4172, 5097)]