21146544

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 63835200

約数和(自身を除く): 42688656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 59, 72, 76, 114, 118, 131, 144, 152, 171, 177, 228, 236, 262, 304, 342, 354, 393, 456, 472, 524, 531, 684, 708, 786, 912, 944, 1048, 1062, 1121, 1179, 1368, 1416, 1572, 2096, 2124, 2242, 2358, 2489, 2736, 2832, 3144, 3363, 4248, 4484, 4716, 4978, 6288, 6726, 7467, 7729, 8496, 8968, 9432, 9956, 10089, 13452, 14934, 15458, 17936, 18864, 19912, 20178, 22401, 23187, 26904, 29868, 30916, 39824, 40356, 44802, 46374, 53808, 59736, 61832, 69561, 80712, 89604, 92748, 119472, 123664, 139122, 146851, 161424, 179208, 185496, 278244, 293702, 358416, 370992, 440553, 556488, 587404, 881106, 1112976, 1174808, 1321659, 1762212, 2349616, 2643318, 3524424, 5286636, 7048848, 10573272, 21146544]

約数ペア:

[(1, 21146544), (2, 10573272), (3, 7048848), (4, 5286636), (6, 3524424), (8, 2643318), (9, 2349616), (12, 1762212), (16, 1321659), (18, 1174808), (19, 1112976), (24, 881106), (36, 587404), (38, 556488), (48, 440553), (57, 370992), (59, 358416), (72, 293702), (76, 278244), (114, 185496), (118, 179208), (131, 161424), (144, 146851), (152, 139122), (171, 123664), (177, 119472), (228, 92748), (236, 89604), (262, 80712), (304, 69561), (342, 61832), (354, 59736), (393, 53808), (456, 46374), (472, 44802), (524, 40356), (531, 39824), (684, 30916), (708, 29868), (786, 26904), (912, 23187), (944, 22401), (1048, 20178), (1062, 19912), (1121, 18864), (1179, 17936), (1368, 15458), (1416, 14934), (1572, 13452), (2096, 10089), (2124, 9956), (2242, 9432), (2358, 8968), (2489, 8496), (2736, 7729), (2832, 7467), (3144, 6726), (3363, 6288), (4248, 4978), (4484, 4716)]