18147955

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 25850880

約数和(自身を除く): 7702925

約数列:

[1, 5, 7, 35, 67, 71, 109, 335, 355, 469, 497, 545, 763, 2345, 2485, 3815, 4757, 7303, 7739, 23785, 33299, 36515, 38695, 51121, 54173, 166495, 255605, 270865, 518513, 2592565, 3629591, 18147955]

約数ペア:

[(1, 18147955), (5, 3629591), (7, 2592565), (35, 518513), (67, 270865), (71, 255605), (109, 166495), (335, 54173), (355, 51121), (469, 38695), (497, 36515), (545, 33299), (763, 23785), (2345, 7739), (2485, 7303), (3815, 4757)]