20288478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7919}}^1$

素因数の和:7992

約数の個数: 32

約数和(自身を含む): 47139840

約数和(自身を除く): 26851362

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 7919, 15838, 23757, 47514, 55433, 110866, 166299, 332598, 483059, 966118, 1449177, 2898354, 3381413, 6762826, 10144239, 20288478]

約数ペア:

[(1, 20288478), (2, 10144239), (3, 6762826), (6, 3381413), (7, 2898354), (14, 1449177), (21, 966118), (42, 483059), (61, 332598), (122, 166299), (183, 110866), (366, 55433), (427, 47514), (854, 23757), (1281, 15838), (2562, 7919)]