18825147

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12624453

約数列:

[1, 3, 9, 11, 29, 33, 79, 83, 87, 99, 237, 249, 261, 319, 711, 747, 869, 913, 957, 2291, 2407, 2607, 2739, 2871, 6557, 6873, 7221, 7821, 8217, 19671, 20619, 21663, 25201, 26477, 59013, 72127, 75603, 79431, 190153, 216381, 226809, 238293, 570459, 649143, 1711377, 2091683, 6275049, 18825147]

約数ペア:

[(1, 18825147), (3, 6275049), (9, 2091683), (11, 1711377), (29, 649143), (33, 570459), (79, 238293), (83, 226809), (87, 216381), (99, 190153), (237, 79431), (249, 75603), (261, 72127), (319, 59013), (711, 26477), (747, 25201), (869, 21663), (913, 20619), (957, 19671), (2291, 8217), (2407, 7821), (2607, 7221), (2739, 6873), (2871, 6557)]