21975494

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 13379386

約数列:

[1, 2, 43, 59, 61, 71, 86, 118, 122, 142, 2537, 2623, 3053, 3599, 4189, 4331, 5074, 5246, 6106, 7198, 8378, 8662, 154757, 180127, 186233, 255529, 309514, 360254, 372466, 511058, 10987747, 21975494]

約数ペア:

[(1, 21975494), (2, 10987747), (43, 511058), (59, 372466), (61, 360254), (71, 309514), (86, 255529), (118, 186233), (122, 180127), (142, 154757), (2537, 8662), (2623, 8378), (3053, 7198), (3599, 6106), (4189, 5246), (4331, 5074)]