21689752

素因数分解:

$2^3\times 7^2\times {\mathrm{55331}}^1$

素因数の和:55351

約数の個数: 24

約数和(自身を含む): 47308860

約数和(自身を除く): 25619108

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55331, 110662, 221324, 387317, 442648, 774634, 1549268, 2711219, 3098536, 5422438, 10844876, 21689752]

約数ペア:

[(1, 21689752), (2, 10844876), (4, 5422438), (7, 3098536), (8, 2711219), (14, 1549268), (28, 774634), (49, 442648), (56, 387317), (98, 221324), (196, 110662), (392, 55331)]