18992974

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 20198066

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 53, 77, 91, 106, 143, 154, 179, 182, 286, 358, 371, 583, 689, 742, 1001, 1166, 1253, 1378, 1969, 2002, 2327, 2506, 3938, 4081, 4654, 4823, 7579, 8162, 9487, 9646, 13783, 15158, 16289, 18974, 25597, 27566, 32578, 51194, 53053, 66409, 104357, 106106, 123331, 132818, 179179, 208714, 246662, 358358, 730499, 863317, 1356641, 1460998, 1726634, 2713282, 9496487, 18992974]

約数ペア:

[(1, 18992974), (2, 9496487), (7, 2713282), (11, 1726634), (13, 1460998), (14, 1356641), (22, 863317), (26, 730499), (53, 358358), (77, 246662), (91, 208714), (106, 179179), (143, 132818), (154, 123331), (179, 106106), (182, 104357), (286, 66409), (358, 53053), (371, 51194), (583, 32578), (689, 27566), (742, 25597), (1001, 18974), (1166, 16289), (1253, 15158), (1378, 13783), (1969, 9646), (2002, 9487), (2327, 8162), (2506, 7579), (3938, 4823), (4081, 4654)]