21239672

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 42055200

約数和(自身を除く): 20815528

約数列:

[1, 2, 4, 8, 23, 46, 89, 92, 178, 184, 356, 712, 1297, 2047, 2594, 4094, 5188, 8188, 10376, 16376, 29831, 59662, 115433, 119324, 230866, 238648, 461732, 923464, 2654959, 5309918, 10619836, 21239672]

約数ペア:

[(1, 21239672), (2, 10619836), (4, 5309918), (8, 2654959), (23, 923464), (46, 461732), (89, 238648), (92, 230866), (178, 119324), (184, 115433), (356, 59662), (712, 29831), (1297, 16376), (2047, 10376), (2594, 8188), (4094, 5188)]