21912426

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 27148950

約数列:

[1, 2, 3, 6, 9, 18, 53, 103, 106, 159, 206, 223, 309, 318, 446, 477, 618, 669, 927, 954, 1338, 1854, 2007, 4014, 5459, 10918, 11819, 16377, 22969, 23638, 32754, 35457, 45938, 49131, 68907, 70914, 98262, 106371, 137814, 206721, 212742, 413442, 1217357, 2434714, 3652071, 7304142, 10956213, 21912426]

約数ペア:

[(1, 21912426), (2, 10956213), (3, 7304142), (6, 3652071), (9, 2434714), (18, 1217357), (53, 413442), (103, 212742), (106, 206721), (159, 137814), (206, 106371), (223, 98262), (309, 70914), (318, 68907), (446, 49131), (477, 45938), (618, 35457), (669, 32754), (927, 23638), (954, 22969), (1338, 16377), (1854, 11819), (2007, 10918), (4014, 5459)]