21096978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17321}}^1$

素因数の和:17362

約数の個数: 32

約数和(自身を含む): 49887360

約数和(自身を除く): 28790382

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17321, 34642, 51963, 103926, 121247, 242494, 363741, 502309, 727482, 1004618, 1506927, 3013854, 3516163, 7032326, 10548489, 21096978]

約数ペア:

[(1, 21096978), (2, 10548489), (3, 7032326), (6, 3516163), (7, 3013854), (14, 1506927), (21, 1004618), (29, 727482), (42, 502309), (58, 363741), (87, 242494), (174, 121247), (203, 103926), (406, 51963), (609, 34642), (1218, 17321)]