20761962

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 47609856

約数和(自身を除く): 26847894

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 71, 78, 138, 142, 163, 213, 299, 326, 426, 489, 598, 897, 923, 978, 1633, 1794, 1846, 2119, 2769, 3266, 3749, 4238, 4899, 5538, 6357, 7498, 9798, 11247, 11573, 12714, 21229, 22494, 23146, 34719, 42458, 48737, 63687, 69438, 97474, 127374, 146211, 150449, 266179, 292422, 300898, 451347, 532358, 798537, 902694, 1597074, 3460327, 6920654, 10380981, 20761962]

約数ペア:

[(1, 20761962), (2, 10380981), (3, 6920654), (6, 3460327), (13, 1597074), (23, 902694), (26, 798537), (39, 532358), (46, 451347), (69, 300898), (71, 292422), (78, 266179), (138, 150449), (142, 146211), (163, 127374), (213, 97474), (299, 69438), (326, 63687), (426, 48737), (489, 42458), (598, 34719), (897, 23146), (923, 22494), (978, 21229), (1633, 12714), (1794, 11573), (1846, 11247), (2119, 9798), (2769, 7498), (3266, 6357), (3749, 5538), (4238, 4899)]