20574476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4079}}^1$

素因数の和:4193

約数の個数: 24

約数和(自身を含む): 39184320

約数和(自身を除く): 18609844

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 4079, 5044, 8158, 16316, 53027, 106054, 212108, 395663, 791326, 1582652, 5143619, 10287238, 20574476]

約数ペア:

[(1, 20574476), (2, 10287238), (4, 5143619), (13, 1582652), (26, 791326), (52, 395663), (97, 212108), (194, 106054), (388, 53027), (1261, 16316), (2522, 8158), (4079, 5044)]