21222575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 28919280

約数和(自身を除く): 7696705

約数列:

[1, 5, 11, 25, 55, 229, 275, 337, 1145, 1685, 2519, 3707, 5725, 8425, 12595, 18535, 62975, 77173, 92675, 385865, 848903, 1929325, 4244515, 21222575]

約数ペア:

[(1, 21222575), (5, 4244515), (11, 1929325), (25, 848903), (55, 385865), (229, 92675), (275, 77173), (337, 62975), (1145, 18535), (1685, 12595), (2519, 8425), (3707, 5725)]