21899556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:150

約数の個数: 108

約数和(自身を含む): 66148992

約数和(自身を除く): 44249436

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 47, 63, 84, 86, 94, 126, 129, 141, 172, 188, 252, 258, 282, 301, 329, 387, 423, 516, 564, 602, 658, 774, 846, 903, 987, 1204, 1316, 1548, 1692, 1806, 1849, 1974, 2021, 2709, 2961, 3612, 3698, 3948, 4042, 5418, 5547, 5922, 6063, 7396, 8084, 10836, 11094, 11844, 12126, 12943, 14147, 16641, 18189, 22188, 24252, 25886, 28294, 33282, 36378, 38829, 42441, 51772, 56588, 66564, 72756, 77658, 84882, 86903, 116487, 127323, 155316, 169764, 173806, 232974, 254646, 260709, 347612, 465948, 509292, 521418, 608321, 782127, 1042836, 1216642, 1564254, 1824963, 2433284, 3128508, 3649926, 5474889, 7299852, 10949778, 21899556]

約数ペア:

[(1, 21899556), (2, 10949778), (3, 7299852), (4, 5474889), (6, 3649926), (7, 3128508), (9, 2433284), (12, 1824963), (14, 1564254), (18, 1216642), (21, 1042836), (28, 782127), (36, 608321), (42, 521418), (43, 509292), (47, 465948), (63, 347612), (84, 260709), (86, 254646), (94, 232974), (126, 173806), (129, 169764), (141, 155316), (172, 127323), (188, 116487), (252, 86903), (258, 84882), (282, 77658), (301, 72756), (329, 66564), (387, 56588), (423, 51772), (516, 42441), (564, 38829), (602, 36378), (658, 33282), (774, 28294), (846, 25886), (903, 24252), (987, 22188), (1204, 18189), (1316, 16641), (1548, 14147), (1692, 12943), (1806, 12126), (1849, 11844), (1974, 11094), (2021, 10836), (2709, 8084), (2961, 7396), (3612, 6063), (3698, 5922), (3948, 5547), (4042, 5418)]