20840556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 55293952

約数和(自身を除く): 34453396

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 93, 121, 124, 132, 186, 242, 341, 363, 372, 463, 484, 682, 726, 926, 1023, 1364, 1389, 1452, 1852, 2046, 2778, 3751, 4092, 5093, 5556, 7502, 10186, 11253, 14353, 15004, 15279, 20372, 22506, 28706, 30558, 43059, 45012, 56023, 57412, 61116, 86118, 112046, 157883, 168069, 172236, 224092, 315766, 336138, 473649, 631532, 672276, 947298, 1736713, 1894596, 3473426, 5210139, 6946852, 10420278, 20840556]

約数ペア:

[(1, 20840556), (2, 10420278), (3, 6946852), (4, 5210139), (6, 3473426), (11, 1894596), (12, 1736713), (22, 947298), (31, 672276), (33, 631532), (44, 473649), (62, 336138), (66, 315766), (93, 224092), (121, 172236), (124, 168069), (132, 157883), (186, 112046), (242, 86118), (341, 61116), (363, 57412), (372, 56023), (463, 45012), (484, 43059), (682, 30558), (726, 28706), (926, 22506), (1023, 20372), (1364, 15279), (1389, 15004), (1452, 14353), (1852, 11253), (2046, 10186), (2778, 7502), (3751, 5556), (4092, 5093)]