21325854

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 28751586

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 83, 102, 166, 187, 229, 249, 374, 458, 498, 561, 687, 913, 1122, 1374, 1411, 1826, 2519, 2739, 2822, 3893, 4233, 5038, 5478, 7557, 7786, 8466, 11679, 15114, 15521, 19007, 23358, 31042, 38014, 42823, 46563, 57021, 85646, 93126, 114042, 128469, 209077, 256938, 323119, 418154, 627231, 646238, 969357, 1254462, 1938714, 3554309, 7108618, 10662927, 21325854]

約数ペア:

[(1, 21325854), (2, 10662927), (3, 7108618), (6, 3554309), (11, 1938714), (17, 1254462), (22, 969357), (33, 646238), (34, 627231), (51, 418154), (66, 323119), (83, 256938), (102, 209077), (166, 128469), (187, 114042), (229, 93126), (249, 85646), (374, 57021), (458, 46563), (498, 42823), (561, 38014), (687, 31042), (913, 23358), (1122, 19007), (1374, 15521), (1411, 15114), (1826, 11679), (2519, 8466), (2739, 7786), (2822, 7557), (3893, 5478), (4233, 5038)]