28991017

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 35896320

約数和(自身を除く): 6905303

約数列:

[1, 11, 19, 23, 37, 163, 209, 253, 407, 437, 703, 851, 1793, 3097, 3749, 4807, 6031, 7733, 9361, 16169, 34067, 41239, 66341, 71231, 114589, 138713, 177859, 783541, 1260479, 1525843, 2635547, 28991017]

約数ペア:

[(1, 28991017), (11, 2635547), (19, 1525843), (23, 1260479), (37, 783541), (163, 177859), (209, 138713), (253, 114589), (407, 71231), (437, 66341), (703, 41239), (851, 34067), (1793, 16169), (3097, 9361), (3749, 7733), (4807, 6031)]