21331193

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1291}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 24310272

約数和(自身を除く): 2979079

約数列:

[1, 13, 31, 41, 403, 533, 1271, 1291, 16523, 16783, 40021, 52931, 520273, 688103, 1640861, 21331193]

約数ペア:

[(1, 21331193), (13, 1640861), (31, 688103), (41, 520273), (403, 52931), (533, 40021), (1271, 16783), (1291, 16523)]