21100968

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{5981}}^1$

素因数の和:6007

約数の個数: 72

約数和(自身を含む): 66489930

約数和(自身を除く): 45388962

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 5981, 11962, 17943, 23924, 35886, 41867, 47848, 53829, 71772, 83734, 107658, 125601, 143544, 167468, 215316, 251202, 293069, 334936, 376803, 430632, 502404, 586138, 753606, 879207, 1004808, 1172276, 1507212, 1758414, 2344552, 2637621, 3014424, 3516828, 5275242, 7033656, 10550484, 21100968]

約数ペア:

[(1, 21100968), (2, 10550484), (3, 7033656), (4, 5275242), (6, 3516828), (7, 3014424), (8, 2637621), (9, 2344552), (12, 1758414), (14, 1507212), (18, 1172276), (21, 1004808), (24, 879207), (28, 753606), (36, 586138), (42, 502404), (49, 430632), (56, 376803), (63, 334936), (72, 293069), (84, 251202), (98, 215316), (126, 167468), (147, 143544), (168, 125601), (196, 107658), (252, 83734), (294, 71772), (392, 53829), (441, 47848), (504, 41867), (588, 35886), (882, 23924), (1176, 17943), (1764, 11962), (3528, 5981)]