19935201

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 12320799

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 341, 403, 429, 1023, 1209, 1499, 4433, 4497, 13299, 16489, 19487, 46469, 49467, 58461, 139407, 214357, 511159, 604097, 643071, 1533477, 1812291, 6645067, 19935201]

約数ペア:

[(1, 19935201), (3, 6645067), (11, 1812291), (13, 1533477), (31, 643071), (33, 604097), (39, 511159), (93, 214357), (143, 139407), (341, 58461), (403, 49467), (429, 46469), (1023, 19487), (1209, 16489), (1499, 13299), (4433, 4497)]