209912098

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{887}}^1$

素因数の和:1278

約数の個数: 32

約数和(自身を含む): 355995648

約数和(自身を除く): 146083550

約数列:

[1, 2, 11, 22, 31, 62, 341, 347, 682, 694, 887, 1774, 3817, 7634, 9757, 10757, 19514, 21514, 27497, 54994, 118327, 236654, 302467, 307789, 604934, 615578, 3385679, 6771358, 9541459, 19082918, 104956049, 209912098]

約数ペア:

[(1, 209912098), (2, 104956049), (11, 19082918), (22, 9541459), (31, 6771358), (62, 3385679), (341, 615578), (347, 604934), (682, 307789), (694, 302467), (887, 236654), (1774, 118327), (3817, 54994), (7634, 27497), (9757, 21514), (10757, 19514)]