21000427958

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{189067}}^1$

素因数の和:189204

約数の個数: 32

約数和(自身を含む): 34486003200

約数和(自身を除く): 13485575242

約数列:

[1, 2, 19, 37, 38, 74, 79, 158, 703, 1406, 1501, 2923, 3002, 5846, 55537, 111074, 189067, 378134, 3592273, 6995479, 7184546, 13990958, 14936293, 29872586, 132914101, 265828202, 283789567, 552642841, 567579134, 1105285682, 10500213979, 21000427958]

約数ペア:

[(1, 21000427958), (2, 10500213979), (19, 1105285682), (37, 567579134), (38, 552642841), (74, 283789567), (79, 265828202), (158, 132914101), (703, 29872586), (1406, 14936293), (1501, 13990958), (2923, 7184546), (3002, 6995479), (5846, 3592273), (55537, 378134), (111074, 189067)]