199965591

素因数分解:

$3^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3121}}^1$

素因数の和:3253

約数の個数: 40

約数和(自身を含む): 344518944

約数和(自身を除く): 144553353

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 113, 189, 339, 567, 791, 1017, 2373, 3051, 3121, 7119, 9153, 9363, 21357, 21847, 28089, 64071, 65541, 84267, 196623, 252801, 352673, 589869, 1058019, 1769607, 2468711, 3174057, 7406133, 9522171, 22218399, 28566513, 66655197, 199965591]

約数ペア:

[(1, 199965591), (3, 66655197), (7, 28566513), (9, 22218399), (21, 9522171), (27, 7406133), (63, 3174057), (81, 2468711), (113, 1769607), (189, 1058019), (339, 589869), (567, 352673), (791, 252801), (1017, 196623), (2373, 84267), (3051, 65541), (3121, 64071), (7119, 28089), (9153, 21847), (9363, 21357)]