219998207

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 290918880

約数和(自身を除く): 70920673

約数列:

[1, 11, 13, 17, 19, 121, 143, 187, 209, 221, 247, 323, 433, 1573, 2057, 2299, 2431, 2717, 3553, 4199, 4763, 5629, 7361, 8227, 26741, 29887, 39083, 46189, 52393, 61919, 80971, 90497, 95693, 106951, 139859, 508079, 681109, 890681, 995467, 1052623, 1176461, 1538449, 1818167, 11578853, 12941071, 16922939, 19999837, 219998207]

約数ペア:

[(1, 219998207), (11, 19999837), (13, 16922939), (17, 12941071), (19, 11578853), (121, 1818167), (143, 1538449), (187, 1176461), (209, 1052623), (221, 995467), (247, 890681), (323, 681109), (433, 508079), (1573, 139859), (2057, 106951), (2299, 95693), (2431, 90497), (2717, 80971), (3553, 61919), (4199, 52393), (4763, 46189), (5629, 39083), (7361, 29887), (8227, 26741)]