212702973

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{39107}}^1$

素因数の和:39161

約数の個数: 24

約数和(自身を含む): 338831712

約数和(自身を除く): 126128739

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 39107, 117321, 273749, 821247, 1446959, 1916243, 4340877, 5748729, 10128713, 30386139, 70900991, 212702973]

約数ペア:

[(1, 212702973), (3, 70900991), (7, 30386139), (21, 10128713), (37, 5748729), (49, 4340877), (111, 1916243), (147, 1446959), (259, 821247), (777, 273749), (1813, 117321), (5439, 39107)]