81981228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{975967}}^1$

素因数の和:975981

約数の個数: 24

約数和(自身を含む): 218616832

約数和(自身を除く): 136635604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 975967, 1951934, 2927901, 3903868, 5855802, 6831769, 11711604, 13663538, 20495307, 27327076, 40990614, 81981228]

約数ペア:

[(1, 81981228), (2, 40990614), (3, 27327076), (4, 20495307), (6, 13663538), (7, 11711604), (12, 6831769), (14, 5855802), (21, 3903868), (28, 2927901), (42, 1951934), (84, 975967)]