28894671

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 17553969

約数列:

[1, 3, 9, 13, 27, 39, 117, 191, 351, 431, 573, 1293, 1719, 2483, 3879, 5157, 5603, 7449, 11637, 16809, 22347, 50427, 67041, 82321, 151281, 246963, 740889, 1070173, 2222667, 3210519, 9631557, 28894671]

約数ペア:

[(1, 28894671), (3, 9631557), (9, 3210519), (13, 2222667), (27, 1070173), (39, 740889), (117, 246963), (191, 151281), (351, 82321), (431, 67041), (573, 50427), (1293, 22347), (1719, 16809), (2483, 11637), (3879, 7449), (5157, 5603)]