21544831

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 7347329

約数列:

[1, 7, 11, 17, 77, 109, 119, 151, 187, 763, 1057, 1199, 1309, 1661, 1853, 2567, 8393, 11627, 12971, 16459, 17969, 20383, 28237, 115213, 142681, 181049, 197659, 279803, 1267343, 1958621, 3077833, 21544831]

約数ペア:

[(1, 21544831), (7, 3077833), (11, 1958621), (17, 1267343), (77, 279803), (109, 197659), (119, 181049), (151, 142681), (187, 115213), (763, 28237), (1057, 20383), (1199, 17969), (1309, 16459), (1661, 12971), (1853, 11627), (2567, 8393)]