21978558

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{24919}}^1$

素因数の和:24941

約数の個数: 36

約数和(自身を含む): 55397160

約数和(自身を除く): 33418602

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 24919, 49838, 74757, 149514, 174433, 224271, 348866, 448542, 523299, 1046598, 1221031, 1569897, 2442062, 3139794, 3663093, 7326186, 10989279, 21978558]

約数ペア:

[(1, 21978558), (2, 10989279), (3, 7326186), (6, 3663093), (7, 3139794), (9, 2442062), (14, 1569897), (18, 1221031), (21, 1046598), (42, 523299), (49, 448542), (63, 348866), (98, 224271), (126, 174433), (147, 149514), (294, 74757), (441, 49838), (882, 24919)]