218365719

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1181}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 343139328

約数和(自身を除く): 124773609

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 431, 1181, 1293, 3543, 4741, 5603, 12991, 14223, 15353, 16809, 38973, 46059, 61633, 168883, 184899, 506649, 509011, 1527033, 5599121, 6617143, 16797363, 19851429, 72788573, 218365719]

約数ペア:

[(1, 218365719), (3, 72788573), (11, 19851429), (13, 16797363), (33, 6617143), (39, 5599121), (143, 1527033), (429, 509011), (431, 506649), (1181, 184899), (1293, 168883), (3543, 61633), (4741, 46059), (5603, 38973), (12991, 16809), (14223, 15353)]