219399719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{7639}}^1$

素因数の和:8030

約数の個数: 16

約数和(自身を含む): 274306560

約数和(自身を除く): 54906841

約数列:

[1, 7, 11, 77, 373, 2611, 4103, 7639, 28721, 53473, 84029, 588203, 2849347, 19945429, 31342817, 219399719]

約数ペア:

[(1, 219399719), (7, 31342817), (11, 19945429), (77, 2849347), (373, 588203), (2611, 84029), (4103, 53473), (7639, 28721)]