21640012009

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{659}}^1\times {\mathrm{1229}}^1$

素因数の和:2253

約数の個数: 32

約数和(自身を含む): 27120614400

約数和(自身を除く): 5480602391

約数列:

[1, 7, 11, 77, 347, 659, 1229, 2429, 3817, 4613, 7249, 8603, 13519, 26719, 50743, 94633, 228673, 426463, 809911, 1600711, 2515403, 2985241, 4691093, 5669377, 8909021, 17607821, 32837651, 62363147, 281039117, 1967273819, 3091430287, 21640012009]

約数ペア:

[(1, 21640012009), (7, 3091430287), (11, 1967273819), (77, 281039117), (347, 62363147), (659, 32837651), (1229, 17607821), (2429, 8909021), (3817, 5669377), (4613, 4691093), (7249, 2985241), (8603, 2515403), (13519, 1600711), (26719, 809911), (50743, 426463), (94633, 228673)]