21977098

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 40792896

約数和(自身を除く): 18815798

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 143, 169, 253, 257, 286, 299, 338, 506, 514, 598, 1859, 2827, 3289, 3341, 3718, 3887, 5654, 5911, 6578, 6682, 7774, 11822, 36751, 42757, 43433, 65021, 73502, 76843, 85514, 86866, 130042, 153686, 477763, 845273, 955526, 998959, 1690546, 1997918, 10988549, 21977098]

約数ペア:

[(1, 21977098), (2, 10988549), (11, 1997918), (13, 1690546), (22, 998959), (23, 955526), (26, 845273), (46, 477763), (143, 153686), (169, 130042), (253, 86866), (257, 85514), (286, 76843), (299, 73502), (338, 65021), (506, 43433), (514, 42757), (598, 36751), (1859, 11822), (2827, 7774), (3289, 6682), (3341, 6578), (3718, 5911), (3887, 5654)]