921567213

素因数分解:

$3^4\times 7^1\times {\mathrm{1625339}}^1$

素因数の和:1625358

約数の個数: 20

約数和(自身を含む): 1573329120

約数和(自身を除く): 651761907

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1625339, 4876017, 11377373, 14628051, 34132119, 43884153, 102396357, 131652459, 307189071, 921567213]

約数ペア:

[(1, 921567213), (3, 307189071), (7, 131652459), (9, 102396357), (21, 43884153), (27, 34132119), (63, 14628051), (81, 11377373), (189, 4876017), (567, 1625339)]