19781268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7459}}^1$

素因数の和:7496

約数の個数: 48

約数和(自身を含む): 52637760

約数和(自身を除く): 32856492

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7459, 14918, 22377, 29836, 44754, 89508, 96967, 126803, 193934, 253606, 290901, 380409, 387868, 507212, 581802, 760818, 1163604, 1521636, 1648439, 3296878, 4945317, 6593756, 9890634, 19781268]

約数ペア:

[(1, 19781268), (2, 9890634), (3, 6593756), (4, 4945317), (6, 3296878), (12, 1648439), (13, 1521636), (17, 1163604), (26, 760818), (34, 581802), (39, 507212), (51, 387868), (52, 380409), (68, 290901), (78, 253606), (102, 193934), (156, 126803), (204, 96967), (221, 89508), (442, 44754), (663, 29836), (884, 22377), (1326, 14918), (2652, 7459)]