21218706

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20681}}^1$

素因数の和:20711

約数の個数: 32

約数和(自身を含む): 49636800

約数和(自身を除く): 28418094

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20681, 41362, 62043, 124086, 186129, 372258, 392939, 558387, 785878, 1116774, 1178817, 2357634, 3536451, 7072902, 10609353, 21218706]

約数ペア:

[(1, 21218706), (2, 10609353), (3, 7072902), (6, 3536451), (9, 2357634), (18, 1178817), (19, 1116774), (27, 785878), (38, 558387), (54, 392939), (57, 372258), (114, 186129), (171, 124086), (342, 62043), (513, 41362), (1026, 20681)]