21093945

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 34728960

約数和(自身を除く): 13635015

約数列:

[1, 3, 5, 15, 67, 139, 151, 201, 335, 417, 453, 695, 755, 1005, 2085, 2265, 9313, 10117, 20989, 27939, 30351, 46565, 50585, 62967, 104945, 139695, 151755, 314835, 1406263, 4218789, 7031315, 21093945]

約数ペア:

[(1, 21093945), (3, 7031315), (5, 4218789), (15, 1406263), (67, 314835), (139, 151755), (151, 139695), (201, 104945), (335, 62967), (417, 50585), (453, 46565), (695, 30351), (755, 27939), (1005, 20989), (2085, 10117), (2265, 9313)]