12920206

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 21732480

約数和(自身を除く): 8812274

約数列:

[1, 2, 13, 26, 47, 94, 97, 109, 194, 218, 611, 1222, 1261, 1417, 2522, 2834, 4559, 5123, 9118, 10246, 10573, 21146, 59267, 66599, 118534, 133198, 137449, 274898, 496931, 993862, 6460103, 12920206]

約数ペア:

[(1, 12920206), (2, 6460103), (13, 993862), (26, 496931), (47, 274898), (94, 137449), (97, 133198), (109, 118534), (194, 66599), (218, 59267), (611, 21146), (1222, 10573), (1261, 10246), (1417, 9118), (2522, 5123), (2834, 4559)]