19498518

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:933

約数の個数: 48

約数和(自身を含む): 45995040

約数和(自身を除く): 26496522

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 103, 117, 206, 234, 309, 618, 809, 927, 1339, 1618, 1854, 2427, 2678, 4017, 4854, 7281, 8034, 10517, 12051, 14562, 21034, 24102, 31551, 63102, 83327, 94653, 166654, 189306, 249981, 499962, 749943, 1083251, 1499886, 2166502, 3249753, 6499506, 9749259, 19498518]

約数ペア:

[(1, 19498518), (2, 9749259), (3, 6499506), (6, 3249753), (9, 2166502), (13, 1499886), (18, 1083251), (26, 749943), (39, 499962), (78, 249981), (103, 189306), (117, 166654), (206, 94653), (234, 83327), (309, 63102), (618, 31551), (809, 24102), (927, 21034), (1339, 14562), (1618, 12051), (1854, 10517), (2427, 8034), (2678, 7281), (4017, 4854)]