20750886

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1341

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 28389114

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1249, 1278, 1846, 2498, 2769, 3747, 5538, 7494, 8307, 11241, 16237, 16614, 22482, 32474, 48711, 88679, 97422, 146133, 177358, 266037, 292266, 532074, 798111, 1152827, 1596222, 2305654, 3458481, 6916962, 10375443, 20750886]

約数ペア:

[(1, 20750886), (2, 10375443), (3, 6916962), (6, 3458481), (9, 2305654), (13, 1596222), (18, 1152827), (26, 798111), (39, 532074), (71, 292266), (78, 266037), (117, 177358), (142, 146133), (213, 97422), (234, 88679), (426, 48711), (639, 32474), (923, 22482), (1249, 16614), (1278, 16237), (1846, 11241), (2498, 8307), (2769, 7494), (3747, 5538)]