31940139

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 55109376

約数和(自身を除く): 23169237

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 101, 111, 231, 259, 303, 407, 707, 777, 1111, 1221, 1369, 2121, 2849, 3333, 3737, 4107, 7777, 8547, 9583, 11211, 15059, 23331, 26159, 28749, 41107, 45177, 78477, 105413, 123321, 138269, 287749, 316239, 414807, 863247, 967883, 1520959, 2903649, 4562877, 10646713, 31940139]

約数ペア:

[(1, 31940139), (3, 10646713), (7, 4562877), (11, 2903649), (21, 1520959), (33, 967883), (37, 863247), (77, 414807), (101, 316239), (111, 287749), (231, 138269), (259, 123321), (303, 105413), (407, 78477), (707, 45177), (777, 41107), (1111, 28749), (1221, 26159), (1369, 23331), (2121, 15059), (2849, 11211), (3333, 9583), (3737, 8547), (4107, 7777)]