21300786

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 53692800

約数和(自身を除く): 32392014

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 1597, 2223, 3194, 4446, 4791, 6669, 9582, 13338, 14373, 20761, 28746, 30343, 41522, 43119, 60686, 62283, 86238, 91029, 124566, 182058, 186849, 273087, 373698, 394459, 546174, 560547, 788918, 819261, 1121094, 1183377, 1638522, 2366754, 3550131, 7100262, 10650393, 21300786]

約数ペア:

[(1, 21300786), (2, 10650393), (3, 7100262), (6, 3550131), (9, 2366754), (13, 1638522), (18, 1183377), (19, 1121094), (26, 819261), (27, 788918), (38, 560547), (39, 546174), (54, 394459), (57, 373698), (78, 273087), (114, 186849), (117, 182058), (171, 124566), (234, 91029), (247, 86238), (342, 62283), (351, 60686), (494, 43119), (513, 41522), (702, 30343), (741, 28746), (1026, 20761), (1482, 14373), (1597, 13338), (2223, 9582), (3194, 6669), (4446, 4791)]