20781638206

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1651171}}^1$

素因数の和:1651240

約数の個数: 32

約数和(自身を含む): 38043002880

約数和(自身を除く): 17261364674

約数列:

[1, 2, 7, 14, 29, 31, 58, 62, 203, 217, 406, 434, 899, 1798, 6293, 12586, 1651171, 3302342, 11558197, 23116394, 47883959, 51186301, 95767918, 102372602, 335187713, 358304107, 670375426, 716608214, 1484402729, 2968805458, 10390819103, 20781638206]

約数ペア:

[(1, 20781638206), (2, 10390819103), (7, 2968805458), (14, 1484402729), (29, 716608214), (31, 670375426), (58, 358304107), (62, 335187713), (203, 102372602), (217, 95767918), (406, 51186301), (434, 47883959), (899, 23116394), (1798, 11558197), (6293, 3302342), (12586, 1651171)]