20977886

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 34725888

約数和(自身を除く): 13748002

約数列:

[1, 2, 23, 31, 46, 47, 62, 94, 313, 626, 713, 1081, 1426, 1457, 2162, 2914, 7199, 9703, 14398, 14711, 19406, 29422, 33511, 67022, 223169, 338353, 446338, 456041, 676706, 912082, 10488943, 20977886]

約数ペア:

[(1, 20977886), (2, 10488943), (23, 912082), (31, 676706), (46, 456041), (47, 446338), (62, 338353), (94, 223169), (313, 67022), (626, 33511), (713, 29422), (1081, 19406), (1426, 14711), (1457, 14398), (2162, 9703), (2914, 7199)]