51638778

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{20639}}^1$

素因数の和:20786

約数の個数: 24

約数和(自身を含む): 112694400

約数和(自身を除く): 61055622

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 20639, 41278, 61917, 123834, 185751, 371502, 2868821, 5737642, 8606463, 17212926, 25819389, 51638778]

約数ペア:

[(1, 51638778), (2, 25819389), (3, 17212926), (6, 8606463), (9, 5737642), (18, 2868821), (139, 371502), (278, 185751), (417, 123834), (834, 61917), (1251, 41278), (2502, 20639)]