21441490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1951}}^1$

素因数の和:2122

約数の個数: 32

約数和(自身を含む): 44411904

約数和(自身を除く): 22970414

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 1951, 2198, 3902, 5495, 9755, 10990, 13657, 19510, 27314, 68285, 136570, 306307, 612614, 1531535, 2144149, 3063070, 4288298, 10720745, 21441490]

約数ペア:

[(1, 21441490), (2, 10720745), (5, 4288298), (7, 3063070), (10, 2144149), (14, 1531535), (35, 612614), (70, 306307), (157, 136570), (314, 68285), (785, 27314), (1099, 19510), (1570, 13657), (1951, 10990), (2198, 9755), (3902, 5495)]