1221507

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 2165760

約数和(自身を除く): 944253

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 281, 483, 621, 843, 1449, 1967, 2529, 4347, 5901, 6463, 7587, 17703, 19389, 45241, 53109, 58167, 135723, 174501, 407169, 1221507]

約数ペア:

[(1, 1221507), (3, 407169), (7, 174501), (9, 135723), (21, 58167), (23, 53109), (27, 45241), (63, 19389), (69, 17703), (161, 7587), (189, 6463), (207, 5901), (281, 4347), (483, 2529), (621, 1967), (843, 1449)]