18019531201

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{18257}}^1$

素因数の和:18505

約数の個数: 32

約数和(自身を含む): 22330264320

約数和(自身を除く): 4310733119

約数列:

[1, 7, 19, 41, 133, 181, 287, 779, 1267, 3439, 5453, 7421, 18257, 24073, 51947, 127799, 140999, 346883, 748537, 986993, 2428181, 3304517, 5239759, 14222203, 23131619, 62785823, 99555421, 135485197, 439500761, 948396379, 2574218743, 18019531201]

約数ペア:

[(1, 18019531201), (7, 2574218743), (19, 948396379), (41, 439500761), (133, 135485197), (181, 99555421), (287, 62785823), (779, 23131619), (1267, 14222203), (3439, 5239759), (5453, 3304517), (7421, 2428181), (18257, 986993), (24073, 748537), (51947, 346883), (127799, 140999)]