21573790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7517}}^1$

素因数の和:7572

約数の個数: 32

約数和(自身を含む): 45468864

約数和(自身を除く): 23895074

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 7517, 15034, 37585, 52619, 75170, 105238, 263095, 308197, 526190, 616394, 1540985, 2157379, 3081970, 4314758, 10786895, 21573790]

約数ペア:

[(1, 21573790), (2, 10786895), (5, 4314758), (7, 3081970), (10, 2157379), (14, 1540985), (35, 616394), (41, 526190), (70, 308197), (82, 263095), (205, 105238), (287, 75170), (410, 52619), (574, 37585), (1435, 15034), (2870, 7517)]