21375926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2468

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 17524810

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2411, 4433, 4822, 8866, 26521, 31343, 53042, 62686, 74741, 149482, 344773, 689546, 822151, 971633, 1644302, 1943266, 10687963, 21375926]

約数ペア:

[(1, 21375926), (2, 10687963), (11, 1943266), (13, 1644302), (22, 971633), (26, 822151), (31, 689546), (62, 344773), (143, 149482), (286, 74741), (341, 62686), (403, 53042), (682, 31343), (806, 26521), (2411, 8866), (4433, 4822)]