1221389716

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{20347}}^1$

素因数の和:20743

約数の個数: 24

約数和(自身を含む): 2193514400

約数和(自身を除く): 972124684

約数列:

[1, 2, 4, 43, 86, 172, 349, 698, 1396, 15007, 20347, 30014, 40694, 60028, 81388, 874921, 1749842, 3499684, 7101103, 14202206, 28404412, 305347429, 610694858, 1221389716]

約数ペア:

[(1, 1221389716), (2, 610694858), (4, 305347429), (43, 28404412), (86, 14202206), (172, 7101103), (349, 3499684), (698, 1749842), (1396, 874921), (15007, 81388), (20347, 60028), (30014, 40694)]