31563987

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 22061613

約数列:

[1, 3, 7, 13, 21, 39, 49, 83, 91, 147, 199, 249, 273, 581, 597, 637, 1079, 1393, 1743, 1911, 2587, 3237, 4067, 4179, 7553, 7761, 9751, 12201, 16517, 18109, 22659, 29253, 49551, 52871, 54327, 115619, 126763, 158613, 214721, 346857, 380289, 644163, 809333, 1503047, 2427999, 4509141, 10521329, 31563987]

約数ペア:

[(1, 31563987), (3, 10521329), (7, 4509141), (13, 2427999), (21, 1503047), (39, 809333), (49, 644163), (83, 380289), (91, 346857), (147, 214721), (199, 158613), (249, 126763), (273, 115619), (581, 54327), (597, 52871), (637, 49551), (1079, 29253), (1393, 22659), (1743, 18109), (1911, 16517), (2587, 12201), (3237, 9751), (4067, 7761), (4179, 7553)]