638946

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 1729728

約数和(自身を除く): 1090782

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 461, 462, 693, 922, 1383, 1386, 2766, 3227, 4149, 5071, 6454, 8298, 9681, 10142, 15213, 19362, 29043, 30426, 35497, 45639, 58086, 70994, 91278, 106491, 212982, 319473, 638946]

約数ペア:

[(1, 638946), (2, 319473), (3, 212982), (6, 106491), (7, 91278), (9, 70994), (11, 58086), (14, 45639), (18, 35497), (21, 30426), (22, 29043), (33, 19362), (42, 15213), (63, 10142), (66, 9681), (77, 8298), (99, 6454), (126, 5071), (154, 4149), (198, 3227), (231, 2766), (461, 1386), (462, 1383), (693, 922)]