21225971456

素因数分解:

$2^8\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{4339}}^1$

素因数の和:4649

約数の個数: 72

約数和(自身を含む): 43033026960

約数和(自身を除く): 21807055504

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 194, 197, 256, 388, 394, 776, 788, 1552, 1576, 3104, 3152, 4339, 6208, 6304, 8678, 12416, 12608, 17356, 19109, 24832, 25216, 34712, 38218, 50432, 69424, 76436, 138848, 152872, 277696, 305744, 420883, 555392, 611488, 841766, 854783, 1110784, 1222976, 1683532, 1709566, 2445952, 3367064, 3419132, 4891904, 6734128, 6838264, 13468256, 13676528, 26936512, 27353056, 53873024, 54706112, 82913951, 107746048, 109412224, 165827902, 218824448, 331655804, 663311608, 1326623216, 2653246432, 5306492864, 10612985728, 21225971456]

約数ペア:

[(1, 21225971456), (2, 10612985728), (4, 5306492864), (8, 2653246432), (16, 1326623216), (32, 663311608), (64, 331655804), (97, 218824448), (128, 165827902), (194, 109412224), (197, 107746048), (256, 82913951), (388, 54706112), (394, 53873024), (776, 27353056), (788, 26936512), (1552, 13676528), (1576, 13468256), (3104, 6838264), (3152, 6734128), (4339, 4891904), (6208, 3419132), (6304, 3367064), (8678, 2445952), (12416, 1709566), (12608, 1683532), (17356, 1222976), (19109, 1110784), (24832, 854783), (25216, 841766), (34712, 611488), (38218, 555392), (50432, 420883), (69424, 305744), (76436, 277696), (138848, 152872)]