18649982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 24

約数和(自身を含む): 31811976

約数和(自身を除く): 13161994

約数列:

[1, 2, 13, 19, 26, 38, 247, 361, 494, 722, 1987, 3974, 4693, 9386, 25831, 37753, 51662, 75506, 490789, 717307, 981578, 1434614, 9324991, 18649982]

約数ペア:

[(1, 18649982), (2, 9324991), (13, 1434614), (19, 981578), (26, 717307), (38, 490789), (247, 75506), (361, 51662), (494, 37753), (722, 25831), (1987, 9386), (3974, 4693)]