21881328

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{65123}}^1$

素因数の和:65141

約数の個数: 40

約数和(自身を含む): 64603008

約数和(自身を除く): 42721680

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 65123, 130246, 195369, 260492, 390738, 455861, 520984, 781476, 911722, 1041968, 1367583, 1562952, 1823444, 2735166, 3125904, 3646888, 5470332, 7293776, 10940664, 21881328]

約数ペア:

[(1, 21881328), (2, 10940664), (3, 7293776), (4, 5470332), (6, 3646888), (7, 3125904), (8, 2735166), (12, 1823444), (14, 1562952), (16, 1367583), (21, 1041968), (24, 911722), (28, 781476), (42, 520984), (48, 455861), (56, 390738), (84, 260492), (112, 195369), (168, 130246), (336, 65123)]