221335362

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{479}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 506880000

約数和(自身を除く): 285544638

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 199, 258, 387, 398, 479, 597, 774, 958, 1161, 1194, 1437, 1791, 2322, 2874, 3582, 4311, 5373, 8557, 8622, 10746, 12933, 17114, 20597, 25671, 25866, 41194, 51342, 61791, 77013, 95321, 123582, 154026, 185373, 190642, 231039, 285963, 370746, 462078, 556119, 571926, 857889, 1112238, 1715778, 2573667, 4098803, 5147334, 8197606, 12296409, 24592818, 36889227, 73778454, 110667681, 221335362]

約数ペア:

[(1, 221335362), (2, 110667681), (3, 73778454), (6, 36889227), (9, 24592818), (18, 12296409), (27, 8197606), (43, 5147334), (54, 4098803), (86, 2573667), (129, 1715778), (199, 1112238), (258, 857889), (387, 571926), (398, 556119), (479, 462078), (597, 370746), (774, 285963), (958, 231039), (1161, 190642), (1194, 185373), (1437, 154026), (1791, 123582), (2322, 95321), (2874, 77013), (3582, 61791), (4311, 51342), (5373, 41194), (8557, 25866), (8622, 25671), (10746, 20597), (12933, 17114)]