397331361

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 706247360

約数和(自身を除く): 308915999

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 139, 153, 157, 289, 357, 417, 471, 867, 973, 1071, 1099, 1251, 1413, 2023, 2363, 2601, 2669, 2919, 3297, 6069, 7089, 8007, 8757, 9891, 16541, 18207, 18683, 21267, 21823, 24021, 40171, 45373, 49623, 56049, 65469, 120513, 136119, 148869, 152761, 168147, 196407, 281197, 317611, 361539, 370991, 408357, 458283, 843591, 952833, 1112973, 1374849, 2530773, 2596937, 2858499, 3338919, 6306847, 7790811, 18920541, 23372433, 44147929, 56761623, 132443787, 397331361]

約数ペア:

[(1, 397331361), (3, 132443787), (7, 56761623), (9, 44147929), (17, 23372433), (21, 18920541), (51, 7790811), (63, 6306847), (119, 3338919), (139, 2858499), (153, 2596937), (157, 2530773), (289, 1374849), (357, 1112973), (417, 952833), (471, 843591), (867, 458283), (973, 408357), (1071, 370991), (1099, 361539), (1251, 317611), (1413, 281197), (2023, 196407), (2363, 168147), (2601, 152761), (2669, 148869), (2919, 136119), (3297, 120513), (6069, 65469), (7089, 56049), (8007, 49623), (8757, 45373), (9891, 40171), (16541, 24021), (18207, 21823), (18683, 21267)]