21180016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9257}}^1$

素因数の和:9289

約数の個数: 40

約数和(自身を含む): 48215664

約数和(自身を除く): 27035648

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9257, 18514, 37028, 74056, 101827, 120341, 148112, 203654, 240682, 407308, 481364, 814616, 962728, 1323751, 1629232, 1925456, 2647502, 5295004, 10590008, 21180016]

約数ペア:

[(1, 21180016), (2, 10590008), (4, 5295004), (8, 2647502), (11, 1925456), (13, 1629232), (16, 1323751), (22, 962728), (26, 814616), (44, 481364), (52, 407308), (88, 240682), (104, 203654), (143, 148112), (176, 120341), (208, 101827), (286, 74056), (572, 37028), (1144, 18514), (2288, 9257)]