20679201

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 12867039

約数列:

[1, 3, 9, 19, 31, 47, 57, 83, 93, 141, 171, 249, 279, 423, 589, 747, 893, 1457, 1577, 1767, 2573, 2679, 3901, 4371, 4731, 5301, 7719, 8037, 11703, 13113, 14193, 23157, 27683, 35109, 48887, 74119, 83049, 120931, 146661, 222357, 249147, 362793, 439983, 667071, 1088379, 2297689, 6893067, 20679201]

約数ペア:

[(1, 20679201), (3, 6893067), (9, 2297689), (19, 1088379), (31, 667071), (47, 439983), (57, 362793), (83, 249147), (93, 222357), (141, 146661), (171, 120931), (249, 83049), (279, 74119), (423, 48887), (589, 35109), (747, 27683), (893, 23157), (1457, 14193), (1577, 13113), (1767, 11703), (2573, 8037), (2679, 7719), (3901, 5301), (4371, 4731)]