21348236

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 46362624

約数和(自身を除く): 25014388

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 223, 263, 364, 446, 526, 892, 1052, 1561, 1841, 2899, 3122, 3419, 3682, 5798, 6244, 6838, 7364, 11596, 13676, 20293, 23933, 40586, 47866, 58649, 81172, 95732, 117298, 234596, 410543, 762437, 821086, 1524874, 1642172, 3049748, 5337059, 10674118, 21348236]

約数ペア:

[(1, 21348236), (2, 10674118), (4, 5337059), (7, 3049748), (13, 1642172), (14, 1524874), (26, 821086), (28, 762437), (52, 410543), (91, 234596), (182, 117298), (223, 95732), (263, 81172), (364, 58649), (446, 47866), (526, 40586), (892, 23933), (1052, 20293), (1561, 13676), (1841, 11596), (2899, 7364), (3122, 6838), (3419, 6244), (3682, 5798)]