21349260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1429}}^1$

素因数の和:1527

約数の個数: 72

約数和(自身を含む): 65585520

約数和(自身を除く): 44236260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1429, 1494, 1660, 2490, 2858, 2988, 3735, 4287, 4980, 5716, 7145, 7470, 8574, 12861, 14290, 14940, 17148, 21435, 25722, 28580, 42870, 51444, 64305, 85740, 118607, 128610, 237214, 257220, 355821, 474428, 593035, 711642, 1067463, 1186070, 1423284, 1779105, 2134926, 2372140, 3558210, 4269852, 5337315, 7116420, 10674630, 21349260]

約数ペア:

[(1, 21349260), (2, 10674630), (3, 7116420), (4, 5337315), (5, 4269852), (6, 3558210), (9, 2372140), (10, 2134926), (12, 1779105), (15, 1423284), (18, 1186070), (20, 1067463), (30, 711642), (36, 593035), (45, 474428), (60, 355821), (83, 257220), (90, 237214), (166, 128610), (180, 118607), (249, 85740), (332, 64305), (415, 51444), (498, 42870), (747, 28580), (830, 25722), (996, 21435), (1245, 17148), (1429, 14940), (1494, 14290), (1660, 12861), (2490, 8574), (2858, 7470), (2988, 7145), (3735, 5716), (4287, 4980)]