20902184

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{947}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 20051416

約数列:

[1, 2, 4, 8, 31, 62, 89, 124, 178, 248, 356, 712, 947, 1894, 2759, 3788, 5518, 7576, 11036, 22072, 29357, 58714, 84283, 117428, 168566, 234856, 337132, 674264, 2612773, 5225546, 10451092, 20902184]

約数ペア:

[(1, 20902184), (2, 10451092), (4, 5225546), (8, 2612773), (31, 674264), (62, 337132), (89, 234856), (124, 168566), (178, 117428), (248, 84283), (356, 58714), (712, 29357), (947, 22072), (1894, 11036), (2759, 7576), (3788, 5518)]