20977668

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15749}}^1$

素因数の和:15796

約数の個数: 36

約数和(自身を含む): 54463500

約数和(自身を除く): 33485832

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15749, 31498, 47247, 62996, 94494, 141741, 188988, 283482, 566964, 582713, 1165426, 1748139, 2330852, 3496278, 5244417, 6992556, 10488834, 20977668]

約数ペア:

[(1, 20977668), (2, 10488834), (3, 6992556), (4, 5244417), (6, 3496278), (9, 2330852), (12, 1748139), (18, 1165426), (36, 582713), (37, 566964), (74, 283482), (111, 188988), (148, 141741), (222, 94494), (333, 62996), (444, 47247), (666, 31498), (1332, 15749)]