19499724

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2543}}^1$

素因数の和:2627

約数の個数: 48

約数和(自身を含む): 51287040

約数和(自身を除く): 31787316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2543, 2556, 3834, 5086, 7629, 7668, 10172, 15258, 22887, 30516, 45774, 68661, 91548, 137322, 180553, 274644, 361106, 541659, 722212, 1083318, 1624977, 2166636, 3249954, 4874931, 6499908, 9749862, 19499724]

約数ペア:

[(1, 19499724), (2, 9749862), (3, 6499908), (4, 4874931), (6, 3249954), (9, 2166636), (12, 1624977), (18, 1083318), (27, 722212), (36, 541659), (54, 361106), (71, 274644), (108, 180553), (142, 137322), (213, 91548), (284, 68661), (426, 45774), (639, 30516), (852, 22887), (1278, 15258), (1917, 10172), (2543, 7668), (2556, 7629), (3834, 5086)]