21195655489

素因数分解:

${\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 22241157120

約数和(自身を除く): 1045501631

約数列:

[1, 67, 71, 103, 181, 239, 4757, 6901, 7313, 12127, 12851, 16013, 16969, 18643, 24617, 43259, 489971, 861017, 1136923, 1249081, 1323653, 1649339, 1747807, 2898353, 3071389, 4455677, 88684751, 117103069, 205783063, 298530359, 316353067, 21195655489]

約数ペア:

[(1, 21195655489), (67, 316353067), (71, 298530359), (103, 205783063), (181, 117103069), (239, 88684751), (4757, 4455677), (6901, 3071389), (7313, 2898353), (12127, 1747807), (12851, 1649339), (16013, 1323653), (16969, 1249081), (18643, 1136923), (24617, 861017), (43259, 489971)]