20739537

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 39567360

約数和(自身を除く): 18827823

約数列:

[1, 3, 7, 9, 13, 21, 23, 27, 39, 63, 69, 91, 117, 161, 189, 207, 273, 299, 351, 367, 483, 621, 819, 897, 1101, 1449, 2093, 2457, 2569, 2691, 3303, 4347, 4771, 6279, 7707, 8073, 8441, 9909, 14313, 18837, 23121, 25323, 33397, 42939, 56511, 59087, 69363, 75969, 100191, 109733, 128817, 177261, 227907, 300573, 329199, 531783, 768131, 901719, 987597, 1595349, 2304393, 2962791, 6913179, 20739537]

約数ペア:

[(1, 20739537), (3, 6913179), (7, 2962791), (9, 2304393), (13, 1595349), (21, 987597), (23, 901719), (27, 768131), (39, 531783), (63, 329199), (69, 300573), (91, 227907), (117, 177261), (161, 128817), (189, 109733), (207, 100191), (273, 75969), (299, 69363), (351, 59087), (367, 56511), (483, 42939), (621, 33397), (819, 25323), (897, 23121), (1101, 18837), (1449, 14313), (2093, 9909), (2457, 8441), (2569, 8073), (2691, 7707), (3303, 6279), (4347, 4771)]