40394151

素因数分解:

$3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{991}}^1$

素因数の和:1651

約数の個数: 24

約数和(自身を含む): 66852864

約数和(自身を除く): 26458713

約数列:

[1, 3, 7, 9, 21, 63, 647, 991, 1941, 2973, 4529, 5823, 6937, 8919, 13587, 20811, 40761, 62433, 641177, 1923531, 4488239, 5770593, 13464717, 40394151]

約数ペア:

[(1, 40394151), (3, 13464717), (7, 5770593), (9, 4488239), (21, 1923531), (63, 641177), (647, 62433), (991, 40761), (1941, 20811), (2973, 13587), (4529, 8919), (5823, 6937)]