20651345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1699}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 10193455

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 1699, 2431, 8495, 12155, 18689, 22087, 28883, 93445, 110435, 144415, 242957, 317713, 375479, 1214785, 1588565, 1877395, 4130269, 20651345]

約数ペア:

[(1, 20651345), (5, 4130269), (11, 1877395), (13, 1588565), (17, 1214785), (55, 375479), (65, 317713), (85, 242957), (143, 144415), (187, 110435), (221, 93445), (715, 28883), (935, 22087), (1105, 18689), (1699, 12155), (2431, 8495)]