20691010288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{984911}}^1$

素因数の和:985033

約数の個数: 40

約数和(自身を含む): 43600084416

約数和(自身を除く): 22909074128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 404, 808, 1313, 1616, 2626, 5252, 10504, 21008, 984911, 1969822, 3939644, 7879288, 12803843, 15758576, 25607686, 51215372, 99476011, 102430744, 198952022, 204861488, 397904044, 795808088, 1293188143, 1591616176, 2586376286, 5172752572, 10345505144, 20691010288]

約数ペア:

[(1, 20691010288), (2, 10345505144), (4, 5172752572), (8, 2586376286), (13, 1591616176), (16, 1293188143), (26, 795808088), (52, 397904044), (101, 204861488), (104, 198952022), (202, 102430744), (208, 99476011), (404, 51215372), (808, 25607686), (1313, 15758576), (1616, 12803843), (2626, 7879288), (5252, 3939644), (10504, 1969822), (21008, 984911)]