221323193

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 281250816

約数和(自身を除く): 59927623

約数列:

[1, 7, 13, 43, 91, 163, 301, 347, 559, 1141, 2119, 2429, 3913, 4511, 7009, 14833, 14921, 31577, 49063, 56561, 91117, 104447, 193973, 395927, 637819, 735293, 1357811, 2432123, 5147051, 17024861, 31617599, 221323193]

約数ペア:

[(1, 221323193), (7, 31617599), (13, 17024861), (43, 5147051), (91, 2432123), (163, 1357811), (301, 735293), (347, 637819), (559, 395927), (1141, 193973), (2119, 104447), (2429, 91117), (3913, 56561), (4511, 49063), (7009, 31577), (14833, 14921)]