21071718

素因数分解:

$2^1\times 3^3\times {\mathrm{61}}^1\times {\mathrm{6397}}^1$

素因数の和:6469

約数の個数: 32

約数和(自身を含む): 47601120

約数和(自身を除く): 26529402

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 122, 183, 366, 549, 1098, 1647, 3294, 6397, 12794, 19191, 38382, 57573, 115146, 172719, 345438, 390217, 780434, 1170651, 2341302, 3511953, 7023906, 10535859, 21071718]

約数ペア:

[(1, 21071718), (2, 10535859), (3, 7023906), (6, 3511953), (9, 2341302), (18, 1170651), (27, 780434), (54, 390217), (61, 345438), (122, 172719), (183, 115146), (366, 57573), (549, 38382), (1098, 19191), (1647, 12794), (3294, 6397)]