221857142

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{673}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 371400960

約数和(自身を除く): 149543818

約数列:

[1, 2, 13, 26, 31, 62, 403, 409, 673, 806, 818, 1346, 5317, 8749, 10634, 12679, 17498, 20863, 25358, 41726, 164827, 271219, 275257, 329654, 542438, 550514, 3578341, 7156682, 8532967, 17065934, 110928571, 221857142]

約数ペア:

[(1, 221857142), (2, 110928571), (13, 17065934), (26, 8532967), (31, 7156682), (62, 3578341), (403, 550514), (409, 542438), (673, 329654), (806, 275257), (818, 271219), (1346, 164827), (5317, 41726), (8749, 25358), (10634, 20863), (12679, 17498)]