401927379

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 668362752

約数和(自身を除く): 266435373

約数列:

[1, 3, 7, 17, 21, 51, 71, 101, 119, 157, 213, 303, 357, 471, 497, 707, 1099, 1207, 1491, 1717, 2121, 2669, 3297, 3621, 5151, 7171, 8007, 8449, 11147, 12019, 15857, 18683, 21513, 25347, 33441, 36057, 47571, 50197, 56049, 78029, 110999, 121907, 150591, 189499, 234087, 269569, 332997, 365721, 568497, 808707, 853349, 1125847, 1326493, 1886983, 2560047, 3377541, 3979479, 5660949, 7880929, 19139399, 23642787, 57418197, 133975793, 401927379]

約数ペア:

[(1, 401927379), (3, 133975793), (7, 57418197), (17, 23642787), (21, 19139399), (51, 7880929), (71, 5660949), (101, 3979479), (119, 3377541), (157, 2560047), (213, 1886983), (303, 1326493), (357, 1125847), (471, 853349), (497, 808707), (707, 568497), (1099, 365721), (1207, 332997), (1491, 269569), (1717, 234087), (2121, 189499), (2669, 150591), (3297, 121907), (3621, 110999), (5151, 78029), (7171, 56049), (8007, 50197), (8449, 47571), (11147, 36057), (12019, 33441), (15857, 25347), (18683, 21513)]