20617428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{887}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 52214400

約数和(自身を除く): 31596972

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 149, 156, 298, 447, 596, 887, 894, 1774, 1788, 1937, 2661, 3548, 3874, 5322, 5811, 7748, 10644, 11531, 11622, 23062, 23244, 34593, 46124, 69186, 132163, 138372, 264326, 396489, 528652, 792978, 1585956, 1718119, 3436238, 5154357, 6872476, 10308714, 20617428]

約数ペア:

[(1, 20617428), (2, 10308714), (3, 6872476), (4, 5154357), (6, 3436238), (12, 1718119), (13, 1585956), (26, 792978), (39, 528652), (52, 396489), (78, 264326), (149, 138372), (156, 132163), (298, 69186), (447, 46124), (596, 34593), (887, 23244), (894, 23062), (1774, 11622), (1788, 11531), (1937, 10644), (2661, 7748), (3548, 5811), (3874, 5322)]