209519793

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 362299392

約数和(自身を除く): 152779599

約数列:

[1, 3, 7, 9, 21, 31, 63, 71, 93, 213, 217, 279, 497, 639, 651, 1491, 1511, 1953, 2201, 4473, 4533, 6603, 10577, 13599, 15407, 19809, 31731, 46221, 46841, 95193, 107281, 138663, 140523, 321843, 327887, 421569, 750967, 965529, 983661, 2252901, 2950983, 3325711, 6758703, 9977133, 23279977, 29931399, 69839931, 209519793]

約数ペア:

[(1, 209519793), (3, 69839931), (7, 29931399), (9, 23279977), (21, 9977133), (31, 6758703), (63, 3325711), (71, 2950983), (93, 2252901), (213, 983661), (217, 965529), (279, 750967), (497, 421569), (639, 327887), (651, 321843), (1491, 140523), (1511, 138663), (1953, 107281), (2201, 95193), (4473, 46841), (4533, 46221), (6603, 31731), (10577, 19809), (13599, 15407)]