19954818

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1609}}^1$

素因数の和:1683

約数の個数: 48

約数和(自身を含む): 47469240

約数和(自身を除く): 27514422

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 1609, 2067, 3218, 4134, 4827, 6201, 9654, 12402, 14481, 20917, 28962, 41834, 62751, 85277, 125502, 170554, 188253, 255831, 376506, 511662, 767493, 1108601, 1534986, 2217202, 3325803, 6651606, 9977409, 19954818]

約数ペア:

[(1, 19954818), (2, 9977409), (3, 6651606), (6, 3325803), (9, 2217202), (13, 1534986), (18, 1108601), (26, 767493), (39, 511662), (53, 376506), (78, 255831), (106, 188253), (117, 170554), (159, 125502), (234, 85277), (318, 62751), (477, 41834), (689, 28962), (954, 20917), (1378, 14481), (1609, 12402), (2067, 9654), (3218, 6201), (4134, 4827)]