20145939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10819821

約数列:

[1, 3, 11, 31, 33, 47, 93, 141, 341, 419, 517, 1023, 1257, 1457, 1551, 4371, 4609, 12989, 13827, 16027, 19693, 38967, 48081, 59079, 142879, 216623, 428637, 610483, 649869, 1831449, 6715313, 20145939]

約数ペア:

[(1, 20145939), (3, 6715313), (11, 1831449), (31, 649869), (33, 610483), (47, 428637), (93, 216623), (141, 142879), (341, 59079), (419, 48081), (517, 38967), (1023, 19693), (1257, 16027), (1457, 13827), (1551, 12989), (4371, 4609)]