21897776

素因数分解:

$2^4\times {\mathrm{1153}}^1\times {\mathrm{1187}}^1$

素因数の和:2348

約数の個数: 20

約数和(自身を含む): 42499512

約数和(自身を除く): 20601736

約数列:

[1, 2, 4, 8, 16, 1153, 1187, 2306, 2374, 4612, 4748, 9224, 9496, 18448, 18992, 1368611, 2737222, 5474444, 10948888, 21897776]

約数ペア:

[(1, 21897776), (2, 10948888), (4, 5474444), (8, 2737222), (16, 1368611), (1153, 18992), (1187, 18448), (2306, 9496), (2374, 9224), (4612, 4748)]