19691386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2221}}^1$

素因数の和:2278

約数の個数: 32

約数和(自身を含む): 35836416

約数和(自身を除く): 16145030

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2221, 4433, 4442, 8866, 24431, 28873, 48862, 57746, 68851, 137702, 317603, 635206, 757361, 895063, 1514722, 1790126, 9845693, 19691386]

約数ペア:

[(1, 19691386), (2, 9845693), (11, 1790126), (13, 1514722), (22, 895063), (26, 757361), (31, 635206), (62, 317603), (143, 137702), (286, 68851), (341, 57746), (403, 48862), (682, 28873), (806, 24431), (2221, 8866), (4433, 4442)]