21000844818

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61405979}}^1$

素因数の和:61406006

約数の個数: 24

約数和(自身を含む): 47896664400

約数和(自身を除く): 26895819582

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 61405979, 122811958, 184217937, 368435874, 552653811, 1105307622, 1166713601, 2333427202, 3500140803, 7000281606, 10500422409, 21000844818]

約数ペア:

[(1, 21000844818), (2, 10500422409), (3, 7000281606), (6, 3500140803), (9, 2333427202), (18, 1166713601), (19, 1105307622), (38, 552653811), (57, 368435874), (114, 184217937), (171, 122811958), (342, 61405979)]