20293427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7285453

約数列:

[1, 7, 11, 17, 37, 77, 119, 187, 259, 407, 419, 629, 1309, 2849, 2933, 4403, 4609, 6919, 7123, 15503, 32263, 48433, 49861, 78353, 108521, 170533, 263551, 548471, 1193731, 1844857, 2899061, 20293427]

約数ペア:

[(1, 20293427), (7, 2899061), (11, 1844857), (17, 1193731), (37, 548471), (77, 263551), (119, 170533), (187, 108521), (259, 78353), (407, 49861), (419, 48433), (629, 32263), (1309, 15503), (2849, 7123), (2933, 6919), (4403, 4609)]