19612472

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 42197760

約数和(自身を除く): 22585288

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 71, 73, 86, 88, 142, 146, 172, 284, 292, 344, 473, 568, 584, 781, 803, 946, 1562, 1606, 1892, 3053, 3124, 3139, 3212, 3784, 5183, 6106, 6248, 6278, 6424, 10366, 12212, 12556, 20732, 24424, 25112, 33583, 34529, 41464, 57013, 67166, 69058, 114026, 134332, 138116, 222869, 228052, 268664, 276232, 445738, 456104, 891476, 1782952, 2451559, 4903118, 9806236, 19612472]

約数ペア:

[(1, 19612472), (2, 9806236), (4, 4903118), (8, 2451559), (11, 1782952), (22, 891476), (43, 456104), (44, 445738), (71, 276232), (73, 268664), (86, 228052), (88, 222869), (142, 138116), (146, 134332), (172, 114026), (284, 69058), (292, 67166), (344, 57013), (473, 41464), (568, 34529), (584, 33583), (781, 25112), (803, 24424), (946, 20732), (1562, 12556), (1606, 12212), (1892, 10366), (3053, 6424), (3124, 6278), (3139, 6248), (3212, 6106), (3784, 5183)]