211020537

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{5119}}^1$

素因数の和:5293

約数の個数: 32

約数和(自身を含む): 348651520

約数和(自身を除く): 137630983

約数列:

[1, 3, 7, 13, 21, 39, 91, 151, 273, 453, 1057, 1963, 3171, 5119, 5889, 13741, 15357, 35833, 41223, 66547, 107499, 199641, 465829, 772969, 1397487, 2318907, 5410783, 10048597, 16232349, 30145791, 70340179, 211020537]

約数ペア:

[(1, 211020537), (3, 70340179), (7, 30145791), (13, 16232349), (21, 10048597), (39, 5410783), (91, 2318907), (151, 1397487), (273, 772969), (453, 465829), (1057, 199641), (1963, 107499), (3171, 66547), (5119, 41223), (5889, 35833), (13741, 15357)]