21551782

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66931}}^1$

素因数の和:66963

約数の個数: 16

約数和(自身を含む): 38552832

約数和(自身を除く): 17001050

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66931, 133862, 468517, 937034, 1539413, 3078826, 10775891, 21551782]

約数ペア:

[(1, 21551782), (2, 10775891), (7, 3078826), (14, 1539413), (23, 937034), (46, 468517), (161, 133862), (322, 66931)]