40665891

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 64447488

約数和(自身を除く): 23781597

約数列:

[1, 3, 7, 21, 41, 73, 123, 219, 287, 511, 647, 861, 1533, 1941, 2993, 4529, 8979, 13587, 20951, 26527, 47231, 62853, 79581, 141693, 185689, 330617, 557067, 991851, 1936471, 5809413, 13555297, 40665891]

約数ペア:

[(1, 40665891), (3, 13555297), (7, 5809413), (21, 1936471), (41, 991851), (73, 557067), (123, 330617), (219, 185689), (287, 141693), (511, 79581), (647, 62853), (861, 47231), (1533, 26527), (1941, 20951), (2993, 13587), (4529, 8979)]