31494981

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 50485248

約数和(自身を除く): 18990267

約数列:

[1, 3, 7, 21, 23, 69, 161, 197, 331, 483, 591, 993, 1379, 2317, 4137, 4531, 6951, 7613, 13593, 22839, 31717, 53291, 65207, 95151, 159873, 195621, 456449, 1369347, 1499761, 4499283, 10498327, 31494981]

約数ペア:

[(1, 31494981), (3, 10498327), (7, 4499283), (21, 1499761), (23, 1369347), (69, 456449), (161, 195621), (197, 159873), (331, 95151), (483, 65207), (591, 53291), (993, 31717), (1379, 22839), (2317, 13593), (4137, 7613), (4531, 6951)]