19712911696

素因数分解:

$2^4\times {\mathrm{443}}^1\times {\mathrm{619}}^1\times {\mathrm{4493}}^1$

素因数の和:5563

約数の個数: 40

約数和(自身を含む): 38350357920

約数和(自身を除く): 18637446224

約数列:

[1, 2, 4, 8, 16, 443, 619, 886, 1238, 1772, 2476, 3544, 4493, 4952, 7088, 8986, 9904, 17972, 35944, 71888, 274217, 548434, 1096868, 1990399, 2193736, 2781167, 3980798, 4387472, 5562334, 7961596, 11124668, 15923192, 22249336, 31846384, 44498672, 1232056981, 2464113962, 4928227924, 9856455848, 19712911696]

約数ペア:

[(1, 19712911696), (2, 9856455848), (4, 4928227924), (8, 2464113962), (16, 1232056981), (443, 44498672), (619, 31846384), (886, 22249336), (1238, 15923192), (1772, 11124668), (2476, 7961596), (3544, 5562334), (4493, 4387472), (4952, 3980798), (7088, 2781167), (8986, 2193736), (9904, 1990399), (17972, 1096868), (35944, 548434), (71888, 274217)]