21321699

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 33976320

約数和(自身を除く): 12654621

約数列:

[1, 3, 7, 21, 29, 87, 157, 203, 223, 471, 609, 669, 1099, 1561, 3297, 4553, 4683, 6467, 13659, 19401, 31871, 35011, 45269, 95613, 105033, 135807, 245077, 735231, 1015319, 3045957, 7107233, 21321699]

約数ペア:

[(1, 21321699), (3, 7107233), (7, 3045957), (21, 1015319), (29, 735231), (87, 245077), (157, 135807), (203, 105033), (223, 95613), (471, 45269), (609, 35011), (669, 31871), (1099, 19401), (1561, 13659), (3297, 6467), (4553, 4683)]