21133688

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{347}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 41592960

約数和(自身を除く): 20459272

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 331, 347, 662, 694, 1324, 1388, 2648, 2776, 7613, 7981, 15226, 15962, 30452, 31924, 60904, 63848, 114857, 229714, 459428, 918856, 2641711, 5283422, 10566844, 21133688]

約数ペア:

[(1, 21133688), (2, 10566844), (4, 5283422), (8, 2641711), (23, 918856), (46, 459428), (92, 229714), (184, 114857), (331, 63848), (347, 60904), (662, 31924), (694, 30452), (1324, 15962), (1388, 15226), (2648, 7981), (2776, 7613)]