2078258679

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{20201}}^1$

素因数の和:20308

約数の個数: 48

約数和(自身を含む): 3630541824

約数和(自身を除く): 1552283145

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 71, 161, 207, 213, 483, 497, 639, 1449, 1491, 1633, 4473, 4899, 11431, 14697, 20201, 34293, 60603, 102879, 141407, 181809, 424221, 464623, 1272663, 1393869, 1434271, 3252361, 4181607, 4302813, 9757083, 10039897, 12908439, 29271249, 30119691, 32988233, 90359073, 98964699, 230917631, 296894097, 692752893, 2078258679]

約数ペア:

[(1, 2078258679), (3, 692752893), (7, 296894097), (9, 230917631), (21, 98964699), (23, 90359073), (63, 32988233), (69, 30119691), (71, 29271249), (161, 12908439), (207, 10039897), (213, 9757083), (483, 4302813), (497, 4181607), (639, 3252361), (1449, 1434271), (1491, 1393869), (1633, 1272663), (4473, 464623), (4899, 424221), (11431, 181809), (14697, 141407), (20201, 102879), (34293, 60603)]