21690228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1733}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 58262400

約数和(自身を除く): 36572172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 149, 298, 447, 596, 894, 1043, 1733, 1788, 2086, 3129, 3466, 4172, 5199, 6258, 6932, 10398, 12131, 12516, 20796, 24262, 36393, 48524, 72786, 145572, 258217, 516434, 774651, 1032868, 1549302, 1807519, 3098604, 3615038, 5422557, 7230076, 10845114, 21690228]

約数ペア:

[(1, 21690228), (2, 10845114), (3, 7230076), (4, 5422557), (6, 3615038), (7, 3098604), (12, 1807519), (14, 1549302), (21, 1032868), (28, 774651), (42, 516434), (84, 258217), (149, 145572), (298, 72786), (447, 48524), (596, 36393), (894, 24262), (1043, 20796), (1733, 12516), (1788, 12131), (2086, 10398), (3129, 6932), (3466, 6258), (4172, 5199)]