81780153

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{647}}^1$

素因数の和:1133

約数の個数: 32

約数和(自身を含む): 134701056

約数和(自身を除く): 52920903

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 463, 647, 1389, 1941, 3241, 4529, 6019, 8411, 9723, 13587, 18057, 25233, 42133, 58877, 126399, 176631, 299561, 898683, 2096927, 3894293, 6290781, 11682879, 27260051, 81780153]

約数ペア:

[(1, 81780153), (3, 27260051), (7, 11682879), (13, 6290781), (21, 3894293), (39, 2096927), (91, 898683), (273, 299561), (463, 176631), (647, 126399), (1389, 58877), (1941, 42133), (3241, 25233), (4529, 18057), (6019, 13587), (8411, 9723)]