21373898

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{883}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 42325920

約数和(自身を除く): 20952022

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 883, 931, 1274, 1729, 1766, 1862, 3458, 6181, 11479, 12103, 12362, 16777, 22958, 24206, 33554, 43267, 80353, 86534, 117439, 160706, 218101, 234878, 436202, 562471, 822073, 1124942, 1526707, 1644146, 3053414, 10686949, 21373898]

約数ペア:

[(1, 21373898), (2, 10686949), (7, 3053414), (13, 1644146), (14, 1526707), (19, 1124942), (26, 822073), (38, 562471), (49, 436202), (91, 234878), (98, 218101), (133, 160706), (182, 117439), (247, 86534), (266, 80353), (494, 43267), (637, 33554), (883, 24206), (931, 22958), (1274, 16777), (1729, 12362), (1766, 12103), (1862, 11479), (3458, 6181)]