221491011

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1637}}^1$

素因数の和:2043

約数の個数: 32

約数和(自身を含む): 358525440

約数和(自身を除く): 137034429

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 379, 1137, 1637, 2653, 4911, 6443, 7959, 11459, 19329, 27829, 34377, 45101, 83487, 135303, 194803, 584409, 620423, 1861269, 4342961, 10547191, 13028883, 31641573, 73830337, 221491011]

約数ペア:

[(1, 221491011), (3, 73830337), (7, 31641573), (17, 13028883), (21, 10547191), (51, 4342961), (119, 1861269), (357, 620423), (379, 584409), (1137, 194803), (1637, 135303), (2653, 83487), (4911, 45101), (6443, 34377), (7959, 27829), (11459, 19329)]