28437981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{439}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 44943360

約数和(自身を除く): 16505379

約数列:

[1, 3, 11, 13, 33, 39, 143, 151, 429, 439, 453, 1317, 1661, 1963, 4829, 4983, 5707, 5889, 14487, 17121, 21593, 62777, 64779, 66289, 188331, 198867, 729179, 861757, 2187537, 2585271, 9479327, 28437981]

約数ペア:

[(1, 28437981), (3, 9479327), (11, 2585271), (13, 2187537), (33, 861757), (39, 729179), (143, 198867), (151, 188331), (429, 66289), (439, 64779), (453, 62777), (1317, 21593), (1661, 17121), (1963, 14487), (4829, 5889), (4983, 5707)]