69920019

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 116363520

約数和(自身を除く): 46443501

約数列:

[1, 3, 9, 13, 19, 39, 57, 71, 117, 171, 213, 247, 443, 639, 741, 923, 1329, 1349, 2223, 2769, 3987, 4047, 5759, 8307, 8417, 12141, 17277, 17537, 25251, 31453, 51831, 52611, 75753, 94359, 109421, 157833, 283077, 328263, 408889, 597607, 984789, 1226667, 1792821, 3680001, 5378463, 7768891, 23306673, 69920019]

約数ペア:

[(1, 69920019), (3, 23306673), (9, 7768891), (13, 5378463), (19, 3680001), (39, 1792821), (57, 1226667), (71, 984789), (117, 597607), (171, 408889), (213, 328263), (247, 283077), (443, 157833), (639, 109421), (741, 94359), (923, 75753), (1329, 52611), (1349, 51831), (2223, 31453), (2769, 25251), (3987, 17537), (4047, 17277), (5759, 12141), (8307, 8417)]