21428658

素因数分解:

$2^1\times 3^3\times {\mathrm{97}}^1\times {\mathrm{4091}}^1$

素因数の和:4199

約数の個数: 32

約数和(自身を含む): 48121920

約数和(自身を除く): 26693262

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 97, 194, 291, 582, 873, 1746, 2619, 4091, 5238, 8182, 12273, 24546, 36819, 73638, 110457, 220914, 396827, 793654, 1190481, 2380962, 3571443, 7142886, 10714329, 21428658]

約数ペア:

[(1, 21428658), (2, 10714329), (3, 7142886), (6, 3571443), (9, 2380962), (18, 1190481), (27, 793654), (54, 396827), (97, 220914), (194, 110457), (291, 73638), (582, 36819), (873, 24546), (1746, 12273), (2619, 8182), (4091, 5238)]