21480050

素因数分解:

$2^1\times 5^2\times {\mathrm{353}}^1\times {\mathrm{1217}}^1$

素因数の和:1582

約数の個数: 24

約数和(自身を含む): 40098996

約数和(自身を除く): 18618946

約数列:

[1, 2, 5, 10, 25, 50, 353, 706, 1217, 1765, 2434, 3530, 6085, 8825, 12170, 17650, 30425, 60850, 429601, 859202, 2148005, 4296010, 10740025, 21480050]

約数ペア:

[(1, 21480050), (2, 10740025), (5, 4296010), (10, 2148005), (25, 859202), (50, 429601), (353, 60850), (706, 30425), (1217, 17650), (1765, 12170), (2434, 8825), (3530, 6085)]