21000810897

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{12377}}^1$

素因数の和:12623

約数の個数: 64

約数和(自身を含む): 35292153600

約数和(自身を除く): 14291342703

約数列:

[1, 3, 9, 11, 27, 29, 33, 87, 99, 197, 261, 297, 319, 591, 783, 957, 1773, 2167, 2871, 5319, 5713, 6501, 8613, 12377, 17139, 19503, 37131, 51417, 58509, 62843, 111393, 136147, 154251, 188529, 334179, 358933, 408441, 565587, 1076799, 1225323, 1696761, 2438269, 3230397, 3675969, 3948263, 7314807, 9691191, 11844789, 21944421, 26820959, 35534367, 65833263, 70709801, 80462877, 106603101, 212129403, 241388631, 636388209, 724165893, 777807811, 1909164627, 2333423433, 7000270299, 21000810897]

約数ペア:

[(1, 21000810897), (3, 7000270299), (9, 2333423433), (11, 1909164627), (27, 777807811), (29, 724165893), (33, 636388209), (87, 241388631), (99, 212129403), (197, 106603101), (261, 80462877), (297, 70709801), (319, 65833263), (591, 35534367), (783, 26820959), (957, 21944421), (1773, 11844789), (2167, 9691191), (2871, 7314807), (5319, 3948263), (5713, 3675969), (6501, 3230397), (8613, 2438269), (12377, 1696761), (17139, 1225323), (19503, 1076799), (37131, 565587), (51417, 408441), (58509, 358933), (62843, 334179), (111393, 188529), (136147, 154251)]