21946899

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 11760621

約数列:

[1, 3, 13, 23, 39, 43, 69, 129, 299, 559, 569, 897, 989, 1677, 1707, 2967, 7397, 12857, 13087, 22191, 24467, 38571, 39261, 73401, 170131, 318071, 510393, 562741, 954213, 1688223, 7315633, 21946899]

約数ペア:

[(1, 21946899), (3, 7315633), (13, 1688223), (23, 954213), (39, 562741), (43, 510393), (69, 318071), (129, 170131), (299, 73401), (559, 39261), (569, 38571), (897, 24467), (989, 22191), (1677, 13087), (1707, 12857), (2967, 7397)]