20217668835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{344453}}^1$

素因数の和:344524

約数の個数: 64

約数和(自身を含む): 40739263488

約数和(自身を除く): 20521594653

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 43, 65, 91, 105, 129, 195, 215, 273, 301, 455, 559, 645, 903, 1365, 1505, 1677, 2795, 3913, 4515, 8385, 11739, 19565, 58695, 344453, 1033359, 1722265, 2411171, 4477889, 5166795, 7233513, 12055855, 13433667, 14811479, 22389445, 31345223, 36167565, 44434437, 67168335, 74057395, 94035669, 103680353, 156726115, 192549227, 222172185, 311041059, 470178345, 518401765, 577647681, 962746135, 1347844589, 1555205295, 2888238405, 4043533767, 6739222945, 20217668835]

約数ペア:

[(1, 20217668835), (3, 6739222945), (5, 4043533767), (7, 2888238405), (13, 1555205295), (15, 1347844589), (21, 962746135), (35, 577647681), (39, 518401765), (43, 470178345), (65, 311041059), (91, 222172185), (105, 192549227), (129, 156726115), (195, 103680353), (215, 94035669), (273, 74057395), (301, 67168335), (455, 44434437), (559, 36167565), (645, 31345223), (903, 22389445), (1365, 14811479), (1505, 13433667), (1677, 12055855), (2795, 7233513), (3913, 5166795), (4515, 4477889), (8385, 2411171), (11739, 1722265), (19565, 1033359), (58695, 344453)]