2021520137

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{613}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 2634089472

約数和(自身を除く): 612569335

約数列:

[1, 7, 13, 31, 49, 91, 167, 217, 403, 613, 637, 1169, 1519, 2171, 2821, 4291, 5177, 7969, 8183, 15197, 19003, 19747, 30037, 36239, 55783, 67301, 102371, 106379, 133021, 247039, 253673, 390481, 471107, 716597, 931147, 1330823, 1729273, 3173501, 3297749, 5016179, 9315761, 12104911, 22214507, 41255513, 65210327, 155501549, 288788591, 2021520137]

約数ペア:

[(1, 2021520137), (7, 288788591), (13, 155501549), (31, 65210327), (49, 41255513), (91, 22214507), (167, 12104911), (217, 9315761), (403, 5016179), (613, 3297749), (637, 3173501), (1169, 1729273), (1519, 1330823), (2171, 931147), (2821, 716597), (4291, 471107), (5177, 390481), (7969, 253673), (8183, 247039), (15197, 133021), (19003, 106379), (19747, 102371), (30037, 67301), (36239, 55783)]