18945784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16561}}^1$

素因数の和:16591

約数の個数: 32

約数和(自身を含む): 41736240

約数和(自身を除く): 22790456

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 16561, 33122, 66244, 132488, 182171, 215293, 364342, 430586, 728684, 861172, 1457368, 1722344, 2368223, 4736446, 9472892, 18945784]

約数ペア:

[(1, 18945784), (2, 9472892), (4, 4736446), (8, 2368223), (11, 1722344), (13, 1457368), (22, 861172), (26, 728684), (44, 430586), (52, 364342), (88, 215293), (104, 182171), (143, 132488), (286, 66244), (572, 33122), (1144, 16561)]