19395964

素因数分解:

$2^2\times 7^3\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 40364800

約数和(自身を除く): 20968836

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 211, 268, 343, 422, 469, 686, 844, 938, 1372, 1477, 1876, 2954, 3283, 5908, 6566, 10339, 13132, 14137, 20678, 22981, 28274, 41356, 45962, 56548, 72373, 91924, 98959, 144746, 197918, 289492, 395836, 692713, 1385426, 2770852, 4848991, 9697982, 19395964]

約数ペア:

[(1, 19395964), (2, 9697982), (4, 4848991), (7, 2770852), (14, 1385426), (28, 692713), (49, 395836), (67, 289492), (98, 197918), (134, 144746), (196, 98959), (211, 91924), (268, 72373), (343, 56548), (422, 45962), (469, 41356), (686, 28274), (844, 22981), (938, 20678), (1372, 14137), (1477, 13132), (1876, 10339), (2954, 6566), (3283, 5908)]