21487620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4651}}^1$

素因数の和:4681

約数の個数: 96

約数和(自身を含む): 75027456

約数和(自身を除く): 53539836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 4651, 9302, 13953, 18604, 23255, 27906, 32557, 46510, 51161, 55812, 65114, 69765, 93020, 97671, 102322, 130228, 139530, 153483, 162785, 195342, 204644, 255805, 279060, 306966, 325570, 358127, 390684, 488355, 511610, 613932, 651140, 716254, 767415, 976710, 1023220, 1074381, 1432508, 1534830, 1790635, 1953420, 2148762, 3069660, 3581270, 4297524, 5371905, 7162540, 10743810, 21487620]

約数ペア:

[(1, 21487620), (2, 10743810), (3, 7162540), (4, 5371905), (5, 4297524), (6, 3581270), (7, 3069660), (10, 2148762), (11, 1953420), (12, 1790635), (14, 1534830), (15, 1432508), (20, 1074381), (21, 1023220), (22, 976710), (28, 767415), (30, 716254), (33, 651140), (35, 613932), (42, 511610), (44, 488355), (55, 390684), (60, 358127), (66, 325570), (70, 306966), (77, 279060), (84, 255805), (105, 204644), (110, 195342), (132, 162785), (140, 153483), (154, 139530), (165, 130228), (210, 102322), (220, 97671), (231, 93020), (308, 69765), (330, 65114), (385, 55812), (420, 51161), (462, 46510), (660, 32557), (770, 27906), (924, 23255), (1155, 18604), (1540, 13953), (2310, 9302), (4620, 4651)]