19419729

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 33652800

約数和(自身を除く): 14233071

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 399, 409, 833, 931, 969, 1227, 2261, 2499, 2793, 2863, 6783, 6953, 7771, 8589, 15827, 20041, 20859, 23313, 47481, 48671, 54397, 60123, 132107, 146013, 163191, 340697, 380779, 396321, 924749, 1022091, 1142337, 2774247, 6473243, 19419729]

約数ペア:

[(1, 19419729), (3, 6473243), (7, 2774247), (17, 1142337), (19, 1022091), (21, 924749), (49, 396321), (51, 380779), (57, 340697), (119, 163191), (133, 146013), (147, 132107), (323, 60123), (357, 54397), (399, 48671), (409, 47481), (833, 23313), (931, 20859), (969, 20041), (1227, 15827), (2261, 8589), (2499, 7771), (2793, 6953), (2863, 6783)]