21401926

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 40851216

約数和(自身を除く): 19449290

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 107, 157, 182, 214, 314, 637, 749, 1099, 1274, 1391, 1498, 2041, 2198, 2782, 4082, 5243, 7693, 9737, 10486, 14287, 15386, 16799, 19474, 28574, 33598, 68159, 100009, 117593, 136318, 200018, 218387, 235186, 436774, 823151, 1528709, 1646302, 3057418, 10700963, 21401926]

約数ペア:

[(1, 21401926), (2, 10700963), (7, 3057418), (13, 1646302), (14, 1528709), (26, 823151), (49, 436774), (91, 235186), (98, 218387), (107, 200018), (157, 136318), (182, 117593), (214, 100009), (314, 68159), (637, 33598), (749, 28574), (1099, 19474), (1274, 16799), (1391, 15386), (1498, 14287), (2041, 10486), (2198, 9737), (2782, 7693), (4082, 5243)]