21317268

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253777}}^1$

素因数の和:253791

約数の個数: 24

約数和(自身を含む): 56846272

約数和(自身を除く): 35529004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253777, 507554, 761331, 1015108, 1522662, 1776439, 3045324, 3552878, 5329317, 7105756, 10658634, 21317268]

約数ペア:

[(1, 21317268), (2, 10658634), (3, 7105756), (4, 5329317), (6, 3552878), (7, 3045324), (12, 1776439), (14, 1522662), (21, 1015108), (28, 761331), (42, 507554), (84, 253777)]