221520693

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{269}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 319904640

約数和(自身を除く): 98383947

約数列:

[1, 3, 17, 51, 67, 201, 241, 269, 723, 807, 1139, 3417, 4097, 4573, 12291, 13719, 16147, 18023, 48441, 54069, 64829, 194487, 274499, 306391, 823497, 919173, 1102093, 3306279, 4343543, 13030629, 73840231, 221520693]

約数ペア:

[(1, 221520693), (3, 73840231), (17, 13030629), (51, 4343543), (67, 3306279), (201, 1102093), (241, 919173), (269, 823497), (723, 306391), (807, 274499), (1139, 194487), (3417, 64829), (4097, 54069), (4573, 48441), (12291, 18023), (13719, 16147)]