221880215

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 281630976

約数和(自身を除く): 59750761

約数列:

[1, 5, 43, 67, 73, 211, 215, 335, 365, 1055, 2881, 3139, 4891, 9073, 14137, 14405, 15403, 15695, 24455, 45365, 70685, 77015, 210313, 607891, 662329, 1032001, 1051565, 3039455, 3311645, 5160005, 44376043, 221880215]

約数ペア:

[(1, 221880215), (5, 44376043), (43, 5160005), (67, 3311645), (73, 3039455), (211, 1051565), (215, 1032001), (335, 662329), (365, 607891), (1055, 210313), (2881, 77015), (3139, 70685), (4891, 45365), (9073, 24455), (14137, 15695), (14405, 15403)]