20771835

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 18626565

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 59, 105, 147, 177, 245, 295, 413, 479, 735, 885, 1239, 1437, 2065, 2395, 2891, 3353, 6195, 7185, 8673, 10059, 14455, 16765, 23471, 28261, 43365, 50295, 70413, 84783, 117355, 141305, 197827, 352065, 423915, 593481, 989135, 1384789, 2967405, 4154367, 6923945, 20771835]

約数ペア:

[(1, 20771835), (3, 6923945), (5, 4154367), (7, 2967405), (15, 1384789), (21, 989135), (35, 593481), (49, 423915), (59, 352065), (105, 197827), (147, 141305), (177, 117355), (245, 84783), (295, 70413), (413, 50295), (479, 43365), (735, 28261), (885, 23471), (1239, 16765), (1437, 14455), (2065, 10059), (2395, 8673), (2891, 7185), (3353, 6195)]