217775385

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7793}}^1$

素因数の和:7836

約数の個数: 48

約数和(自身を含む): 408530304

約数和(自身を除く): 190754919

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 243, 345, 405, 621, 1035, 1215, 1863, 3105, 5589, 7793, 9315, 23379, 27945, 38965, 70137, 116895, 179239, 210411, 350685, 537717, 631233, 896195, 1052055, 1613151, 1893699, 2688585, 3156165, 4839453, 8065755, 9468495, 14518359, 24197265, 43555077, 72591795, 217775385]

約数ペア:

[(1, 217775385), (3, 72591795), (5, 43555077), (9, 24197265), (15, 14518359), (23, 9468495), (27, 8065755), (45, 4839453), (69, 3156165), (81, 2688585), (115, 1893699), (135, 1613151), (207, 1052055), (243, 896195), (345, 631233), (405, 537717), (621, 350685), (1035, 210411), (1215, 179239), (1863, 116895), (3105, 70137), (5589, 38965), (7793, 27945), (9315, 23379)]