81218646

素因数分解:

$2^1\times 3^3\times {\mathrm{193}}^1\times {\mathrm{7793}}^1$

素因数の和:7997

約数の個数: 32

約数和(自身を含む): 181444320

約数和(自身を除く): 100225674

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 193, 386, 579, 1158, 1737, 3474, 5211, 7793, 10422, 15586, 23379, 46758, 70137, 140274, 210411, 420822, 1504049, 3008098, 4512147, 9024294, 13536441, 27072882, 40609323, 81218646]

約数ペア:

[(1, 81218646), (2, 40609323), (3, 27072882), (6, 13536441), (9, 9024294), (18, 4512147), (27, 3008098), (54, 1504049), (193, 420822), (386, 210411), (579, 140274), (1158, 70137), (1737, 46758), (3474, 23379), (5211, 15586), (7793, 10422)]