21780453654

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{51071}}^1$

素因数の和:51170

約数の個数: 96

約数和(自身を含む): 52583731200

約数和(自身を除く): 30803277546

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 38, 43, 57, 58, 86, 87, 114, 129, 171, 174, 258, 261, 342, 387, 522, 551, 774, 817, 1102, 1247, 1634, 1653, 2451, 2494, 3306, 3741, 4902, 4959, 7353, 7482, 9918, 11223, 14706, 22446, 23693, 47386, 51071, 71079, 102142, 142158, 153213, 213237, 306426, 426474, 459639, 919278, 970349, 1481059, 1940698, 2196053, 2911047, 2962118, 4392106, 4443177, 5822094, 6588159, 8733141, 8886354, 13176318, 13329531, 17466282, 19764477, 26659062, 28140121, 39528954, 41725007, 56280242, 63685537, 83450014, 84420363, 125175021, 127371074, 168840726, 191056611, 250350042, 253261089, 375525063, 382113222, 506522178, 573169833, 751050126, 1146339666, 1210025203, 2420050406, 3630075609, 7260151218, 10890226827, 21780453654]

約数ペア:

[(1, 21780453654), (2, 10890226827), (3, 7260151218), (6, 3630075609), (9, 2420050406), (18, 1210025203), (19, 1146339666), (29, 751050126), (38, 573169833), (43, 506522178), (57, 382113222), (58, 375525063), (86, 253261089), (87, 250350042), (114, 191056611), (129, 168840726), (171, 127371074), (174, 125175021), (258, 84420363), (261, 83450014), (342, 63685537), (387, 56280242), (522, 41725007), (551, 39528954), (774, 28140121), (817, 26659062), (1102, 19764477), (1247, 17466282), (1634, 13329531), (1653, 13176318), (2451, 8886354), (2494, 8733141), (3306, 6588159), (3741, 5822094), (4902, 4443177), (4959, 4392106), (7353, 2962118), (7482, 2911047), (9918, 2196053), (11223, 1940698), (14706, 1481059), (22446, 970349), (23693, 919278), (47386, 459639), (51071, 426474), (71079, 306426), (102142, 213237), (142158, 153213)]