19983262

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1559}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 15397538

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 221, 377, 442, 493, 754, 986, 1559, 3118, 6409, 12818, 20267, 26503, 40534, 45211, 53006, 90422, 344539, 587743, 689078, 768587, 1175486, 1537174, 9991631, 19983262]

約数ペア:

[(1, 19983262), (2, 9991631), (13, 1537174), (17, 1175486), (26, 768587), (29, 689078), (34, 587743), (58, 344539), (221, 90422), (377, 53006), (442, 45211), (493, 40534), (754, 26503), (986, 20267), (1559, 12818), (3118, 6409)]