20543769

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 13601511

約数列:

[1, 3, 9, 17, 19, 37, 51, 57, 111, 153, 171, 191, 323, 333, 573, 629, 703, 969, 1719, 1887, 2109, 2907, 3247, 3629, 5661, 6327, 7067, 9741, 10887, 11951, 21201, 29223, 32661, 35853, 61693, 63603, 107559, 120139, 134273, 185079, 360417, 402819, 555237, 1081251, 1208457, 2282641, 6847923, 20543769]

約数ペア:

[(1, 20543769), (3, 6847923), (9, 2282641), (17, 1208457), (19, 1081251), (37, 555237), (51, 402819), (57, 360417), (111, 185079), (153, 134273), (171, 120139), (191, 107559), (323, 63603), (333, 61693), (573, 35853), (629, 32661), (703, 29223), (969, 21201), (1719, 11951), (1887, 10887), (2109, 9741), (2907, 7067), (3247, 6327), (3629, 5661)]