721813393

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4987}}^1$

素因数の和:5077

約数の個数: 32

約数和(自身を含む): 919388160

約数和(自身を除く): 197574767

約数列:

[1, 7, 23, 29, 31, 161, 203, 217, 667, 713, 899, 4669, 4987, 4991, 6293, 20677, 34909, 114701, 144623, 144739, 154597, 802907, 1012361, 1082179, 3326329, 3555731, 4483313, 23284303, 24890117, 31383191, 103116199, 721813393]

約数ペア:

[(1, 721813393), (7, 103116199), (23, 31383191), (29, 24890117), (31, 23284303), (161, 4483313), (203, 3555731), (217, 3326329), (667, 1082179), (713, 1012361), (899, 802907), (4669, 154597), (4987, 144739), (4991, 144623), (6293, 114701), (20677, 34909)]