21459795

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 41395200

約数和(自身を除く): 19935405

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 97, 105, 129, 147, 215, 245, 291, 301, 343, 485, 645, 679, 735, 903, 1029, 1455, 1505, 1715, 2037, 2107, 3395, 4171, 4515, 4753, 5145, 6321, 10185, 10535, 12513, 14259, 14749, 20855, 23765, 29197, 31605, 33271, 44247, 62565, 71295, 73745, 87591, 99813, 145985, 166355, 204379, 221235, 437955, 499065, 613137, 1021895, 1430653, 3065685, 4291959, 7153265, 21459795]

約数ペア:

[(1, 21459795), (3, 7153265), (5, 4291959), (7, 3065685), (15, 1430653), (21, 1021895), (35, 613137), (43, 499065), (49, 437955), (97, 221235), (105, 204379), (129, 166355), (147, 145985), (215, 99813), (245, 87591), (291, 73745), (301, 71295), (343, 62565), (485, 44247), (645, 33271), (679, 31605), (735, 29197), (903, 23765), (1029, 20855), (1455, 14749), (1505, 14259), (1715, 12513), (2037, 10535), (2107, 10185), (3395, 6321), (4171, 5145), (4515, 4753)]