19837744

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13931}}^1$

素因数の和:14028

約数の個数: 20

約数和(自身を含む): 38870280

約数和(自身を除く): 19032536

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13931, 27862, 55724, 111448, 222896, 1239859, 2479718, 4959436, 9918872, 19837744]

約数ペア:

[(1, 19837744), (2, 9918872), (4, 4959436), (8, 2479718), (16, 1239859), (89, 222896), (178, 111448), (356, 55724), (712, 27862), (1424, 13931)]