19687374

素因数分解:

$2^1\times 3^7\times 7^1\times {\mathrm{643}}^1$

素因数の和:673

約数の個数: 64

約数和(自身を含む): 50695680

約数和(自身を除く): 31008306

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 643, 729, 1134, 1286, 1458, 1701, 1929, 2187, 3402, 3858, 4374, 4501, 5103, 5787, 9002, 10206, 11574, 13503, 15309, 17361, 27006, 30618, 34722, 40509, 52083, 81018, 104166, 121527, 156249, 243054, 312498, 364581, 468747, 729162, 937494, 1093743, 1406241, 2187486, 2812482, 3281229, 6562458, 9843687, 19687374]

約数ペア:

[(1, 19687374), (2, 9843687), (3, 6562458), (6, 3281229), (7, 2812482), (9, 2187486), (14, 1406241), (18, 1093743), (21, 937494), (27, 729162), (42, 468747), (54, 364581), (63, 312498), (81, 243054), (126, 156249), (162, 121527), (189, 104166), (243, 81018), (378, 52083), (486, 40509), (567, 34722), (643, 30618), (729, 27006), (1134, 17361), (1286, 15309), (1458, 13503), (1701, 11574), (1929, 10206), (2187, 9002), (3402, 5787), (3858, 5103), (4374, 4501)]