28780866

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{23173}}^1$

素因数の和:23207

約数の個数: 32

約数和(自身を含む): 66741120

約数和(自身を除く): 37960254

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 23173, 46346, 69519, 139038, 208557, 417114, 532979, 625671, 1065958, 1251342, 1598937, 3197874, 4796811, 9593622, 14390433, 28780866]

約数ペア:

[(1, 28780866), (2, 14390433), (3, 9593622), (6, 4796811), (9, 3197874), (18, 1598937), (23, 1251342), (27, 1065958), (46, 625671), (54, 532979), (69, 417114), (138, 208557), (207, 139038), (414, 69519), (621, 46346), (1242, 23173)]