21429268

素因数分解:

$2^2\times 7^3\times {\mathrm{15619}}^1$

素因数の和:15644

約数の個数: 24

約数和(自身を含む): 43736000

約数和(自身を除く): 22306732

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15619, 31238, 62476, 109333, 218666, 437332, 765331, 1530662, 3061324, 5357317, 10714634, 21429268]

約数ペア:

[(1, 21429268), (2, 10714634), (4, 5357317), (7, 3061324), (14, 1530662), (28, 765331), (49, 437332), (98, 218666), (196, 109333), (343, 62476), (686, 31238), (1372, 15619)]