638263561

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 739692800

約数和(自身を除く): 101429239

約数列:

[1, 13, 19, 109, 151, 157, 247, 1417, 1963, 2041, 2071, 2869, 2983, 16459, 17113, 23707, 26923, 37297, 38779, 213967, 222469, 308191, 312721, 325147, 450433, 2584063, 4065373, 4226911, 5855629, 33592819, 49097197, 638263561]

約数ペア:

[(1, 638263561), (13, 49097197), (19, 33592819), (109, 5855629), (151, 4226911), (157, 4065373), (247, 2584063), (1417, 450433), (1963, 325147), (2041, 312721), (2071, 308191), (2869, 222469), (2983, 213967), (16459, 38779), (17113, 37297), (23707, 26923)]