21706477

素因数分解:

${\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 24055920

約数和(自身を除く): 2349443

約数列:

[1, 13, 73, 89, 257, 949, 1157, 3341, 6497, 18761, 22873, 84461, 243893, 297349, 1669729, 21706477]

約数ペア:

[(1, 21706477), (13, 1669729), (73, 297349), (89, 243893), (257, 84461), (949, 22873), (1157, 18761), (3341, 6497)]