211974049

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1481}}^1$

素因数の和:1645

約数の個数: 24

約数和(自身を含む): 259504128

約数和(自身を除く): 47530079

約数列:

[1, 7, 23, 49, 127, 161, 889, 1127, 1481, 2921, 6223, 10367, 20447, 34063, 72569, 143129, 188087, 238441, 1316609, 1669087, 4326001, 9216263, 30282007, 211974049]

約数ペア:

[(1, 211974049), (7, 30282007), (23, 9216263), (49, 4326001), (127, 1669087), (161, 1316609), (889, 238441), (1127, 188087), (1481, 143129), (2921, 72569), (6223, 34063), (10367, 20447)]