18587816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{487}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 37712640

約数和(自身を除く): 19124824

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 367, 487, 734, 974, 1468, 1948, 2936, 3896, 4771, 6331, 9542, 12662, 19084, 25324, 38168, 50648, 178729, 357458, 714916, 1429832, 2323477, 4646954, 9293908, 18587816]

約数ペア:

[(1, 18587816), (2, 9293908), (4, 4646954), (8, 2323477), (13, 1429832), (26, 714916), (52, 357458), (104, 178729), (367, 50648), (487, 38168), (734, 25324), (974, 19084), (1468, 12662), (1948, 9542), (2936, 6331), (3896, 4771)]