30251781

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 53248000

約数和(自身を除く): 22996219

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 127, 133, 171, 199, 381, 399, 597, 889, 1143, 1197, 1393, 1791, 2413, 2667, 3781, 4179, 7239, 8001, 11343, 12537, 16891, 21717, 25273, 26467, 34029, 50673, 75819, 79401, 152019, 176911, 227457, 238203, 480187, 530733, 1440561, 1592199, 3361309, 4321683, 10083927, 30251781]

約数ペア:

[(1, 30251781), (3, 10083927), (7, 4321683), (9, 3361309), (19, 1592199), (21, 1440561), (57, 530733), (63, 480187), (127, 238203), (133, 227457), (171, 176911), (199, 152019), (381, 79401), (399, 75819), (597, 50673), (889, 34029), (1143, 26467), (1197, 25273), (1393, 21717), (1791, 16891), (2413, 12537), (2667, 11343), (3781, 8001), (4179, 7239)]