81301251

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 117964800

約数和(自身を除く): 36663549

約数列:

[1, 3, 23, 31, 69, 93, 191, 199, 573, 597, 713, 2139, 4393, 4577, 5921, 6169, 13179, 13731, 17763, 18507, 38009, 114027, 136183, 141887, 408549, 425661, 874207, 1178279, 2622621, 3534837, 27100417, 81301251]

約数ペア:

[(1, 81301251), (3, 27100417), (23, 3534837), (31, 2622621), (69, 1178279), (93, 874207), (191, 425661), (199, 408549), (573, 141887), (597, 136183), (713, 114027), (2139, 38009), (4393, 18507), (4577, 17763), (5921, 13731), (6169, 13179)]