21527880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 72161280

約数和(自身を除く): 50633400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 47, 55, 60, 66, 88, 94, 110, 120, 132, 141, 165, 188, 220, 235, 264, 282, 330, 347, 376, 440, 470, 517, 564, 660, 694, 705, 940, 1034, 1041, 1128, 1320, 1388, 1410, 1551, 1735, 1880, 2068, 2082, 2585, 2776, 2820, 3102, 3470, 3817, 4136, 4164, 5170, 5205, 5640, 6204, 6940, 7634, 7755, 8328, 10340, 10410, 11451, 12408, 13880, 15268, 15510, 16309, 19085, 20680, 20820, 22902, 30536, 31020, 32618, 38170, 41640, 45804, 48927, 57255, 62040, 65236, 76340, 81545, 91608, 97854, 114510, 130472, 152680, 163090, 179399, 195708, 229020, 244635, 326180, 358798, 391416, 458040, 489270, 538197, 652360, 717596, 896995, 978540, 1076394, 1435192, 1793990, 1957080, 2152788, 2690985, 3587980, 4305576, 5381970, 7175960, 10763940, 21527880]

約数ペア:

[(1, 21527880), (2, 10763940), (3, 7175960), (4, 5381970), (5, 4305576), (6, 3587980), (8, 2690985), (10, 2152788), (11, 1957080), (12, 1793990), (15, 1435192), (20, 1076394), (22, 978540), (24, 896995), (30, 717596), (33, 652360), (40, 538197), (44, 489270), (47, 458040), (55, 391416), (60, 358798), (66, 326180), (88, 244635), (94, 229020), (110, 195708), (120, 179399), (132, 163090), (141, 152680), (165, 130472), (188, 114510), (220, 97854), (235, 91608), (264, 81545), (282, 76340), (330, 65236), (347, 62040), (376, 57255), (440, 48927), (470, 45804), (517, 41640), (564, 38170), (660, 32618), (694, 31020), (705, 30536), (940, 22902), (1034, 20820), (1041, 20680), (1128, 19085), (1320, 16309), (1388, 15510), (1410, 15268), (1551, 13880), (1735, 12408), (1880, 11451), (2068, 10410), (2082, 10340), (2585, 8328), (2776, 7755), (2820, 7634), (3102, 6940), (3470, 6204), (3817, 5640), (4136, 5205), (4164, 5170)]