21783477

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{8059}}^1$

素因数の和:8132

約数の個数: 16

約数和(自身を含む): 31337280

約数和(自身を除く): 9553803

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 8059, 24177, 137003, 411009, 427127, 1281381, 7261159, 21783477]

約数ペア:

[(1, 21783477), (3, 7261159), (17, 1281381), (51, 427127), (53, 411009), (159, 137003), (901, 24177), (2703, 8059)]