19017986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12915454

約数列:

[1, 2, 13, 26, 47, 79, 94, 158, 197, 394, 611, 1027, 1222, 2054, 2561, 3713, 5122, 7426, 9259, 15563, 18518, 31126, 48269, 96538, 120367, 202319, 240734, 404638, 731461, 1462922, 9508993, 19017986]

約数ペア:

[(1, 19017986), (2, 9508993), (13, 1462922), (26, 731461), (47, 404638), (79, 240734), (94, 202319), (158, 120367), (197, 96538), (394, 48269), (611, 31126), (1027, 18518), (1222, 15563), (2054, 9259), (2561, 7426), (3713, 5122)]