21561694

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7369}}^1$

素因数の和:7408

約数の個数: 32

約数和(自身を含む): 42451200

約数和(自身を除く): 20889506

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 7369, 14738, 51583, 81059, 103166, 140011, 162118, 280022, 567413, 980077, 1134826, 1540121, 1960154, 3080242, 10780847, 21561694]

約数ペア:

[(1, 21561694), (2, 10780847), (7, 3080242), (11, 1960154), (14, 1540121), (19, 1134826), (22, 980077), (38, 567413), (77, 280022), (133, 162118), (154, 140011), (209, 103166), (266, 81059), (418, 51583), (1463, 14738), (2926, 7369)]