19906376

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 45878400

約数和(自身を除く): 25972024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 53, 56, 76, 106, 133, 152, 212, 266, 353, 371, 424, 532, 706, 742, 1007, 1064, 1412, 1484, 2014, 2471, 2824, 2968, 4028, 4942, 6707, 7049, 8056, 9884, 13414, 14098, 18709, 19768, 26828, 28196, 37418, 46949, 53656, 56392, 74836, 93898, 130963, 149672, 187796, 261926, 355471, 375592, 523852, 710942, 1047704, 1421884, 2488297, 2843768, 4976594, 9953188, 19906376]

約数ペア:

[(1, 19906376), (2, 9953188), (4, 4976594), (7, 2843768), (8, 2488297), (14, 1421884), (19, 1047704), (28, 710942), (38, 523852), (53, 375592), (56, 355471), (76, 261926), (106, 187796), (133, 149672), (152, 130963), (212, 93898), (266, 74836), (353, 56392), (371, 53656), (424, 46949), (532, 37418), (706, 28196), (742, 26828), (1007, 19768), (1064, 18709), (1412, 14098), (1484, 13414), (2014, 9884), (2471, 8056), (2824, 7049), (2968, 6707), (4028, 4942)]