18219190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1968

約数の個数: 32

約数和(自身を含む): 36197280

約数和(自身を除く): 17978090

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1861, 1958, 3722, 4895, 9305, 9790, 18610, 20471, 40942, 102355, 165629, 204710, 331258, 828145, 1656290, 1821919, 3643838, 9109595, 18219190]

約数ペア:

[(1, 18219190), (2, 9109595), (5, 3643838), (10, 1821919), (11, 1656290), (22, 828145), (55, 331258), (89, 204710), (110, 165629), (178, 102355), (445, 40942), (890, 20471), (979, 18610), (1861, 9790), (1958, 9305), (3722, 4895)]