217424529

素因数分解:

$3^2\times 7^1\times {\mathrm{659}}^1\times {\mathrm{5237}}^1$

素因数の和:5909

約数の個数: 24

約数和(自身を含む): 359536320

約数和(自身を除く): 142111791

約数列:

[1, 3, 7, 9, 21, 63, 659, 1977, 4613, 5237, 5931, 13839, 15711, 36659, 41517, 47133, 109977, 329931, 3451183, 10353549, 24158281, 31060647, 72474843, 217424529]

約数ペア:

[(1, 217424529), (3, 72474843), (7, 31060647), (9, 24158281), (21, 10353549), (63, 3451183), (659, 329931), (1977, 109977), (4613, 47133), (5237, 41517), (5931, 36659), (13839, 15711)]