64080021

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 93374208

約数和(自身を除く): 29294187

約数列:

[1, 3, 17, 51, 53, 151, 157, 159, 453, 471, 901, 2567, 2669, 2703, 7701, 8003, 8007, 8321, 23707, 24009, 24963, 71121, 136051, 141457, 403019, 408153, 424371, 1209057, 1256471, 3769413, 21360007, 64080021]

約数ペア:

[(1, 64080021), (3, 21360007), (17, 3769413), (51, 1256471), (53, 1209057), (151, 424371), (157, 408153), (159, 403019), (453, 141457), (471, 136051), (901, 71121), (2567, 24963), (2669, 24009), (2703, 23707), (7701, 8321), (8003, 8007)]