21039959090

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1\times {\mathrm{82487}}^1$

素因数の和:83626

約数の個数: 32

約数和(自身を含む): 39554645760

約数和(自身を除く): 18514686670

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 1109, 2218, 5545, 11090, 25507, 51014, 82487, 127535, 164974, 255070, 412435, 824870, 1897201, 3794402, 9486005, 18972010, 91478083, 182956166, 457390415, 914780830, 2103995909, 4207991818, 10519979545, 21039959090]

約数ペア:

[(1, 21039959090), (2, 10519979545), (5, 4207991818), (10, 2103995909), (23, 914780830), (46, 457390415), (115, 182956166), (230, 91478083), (1109, 18972010), (2218, 9486005), (5545, 3794402), (11090, 1897201), (25507, 824870), (51014, 412435), (82487, 255070), (127535, 164974)]