71990457

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{211}}^2$

素因数の和:450

約数の個数: 36

約数和(自身を含む): 122389488

約数和(自身を除く): 50399031

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 211, 231, 539, 633, 1477, 1617, 2321, 4431, 6963, 10339, 16247, 31017, 44521, 48741, 113729, 133563, 311647, 341187, 489731, 934941, 1469193, 2181529, 3428117, 6544587, 10284351, 23996819, 71990457]

約数ペア:

[(1, 71990457), (3, 23996819), (7, 10284351), (11, 6544587), (21, 3428117), (33, 2181529), (49, 1469193), (77, 934941), (147, 489731), (211, 341187), (231, 311647), (539, 133563), (633, 113729), (1477, 48741), (1617, 44521), (2321, 31017), (4431, 16247), (6963, 10339)]