20623806

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 72

約数和(自身を含む): 52907400

約数和(自身を除く): 32283594

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 67, 98, 126, 134, 147, 201, 294, 349, 402, 441, 469, 603, 698, 882, 938, 1047, 1206, 1407, 2094, 2443, 2814, 3141, 3283, 4221, 4886, 6282, 6566, 7329, 8442, 9849, 14658, 17101, 19698, 21987, 23383, 29547, 34202, 43974, 46766, 51303, 59094, 70149, 102606, 140298, 153909, 163681, 210447, 307818, 327362, 420894, 491043, 982086, 1145767, 1473129, 2291534, 2946258, 3437301, 6874602, 10311903, 20623806]

約数ペア:

[(1, 20623806), (2, 10311903), (3, 6874602), (6, 3437301), (7, 2946258), (9, 2291534), (14, 1473129), (18, 1145767), (21, 982086), (42, 491043), (49, 420894), (63, 327362), (67, 307818), (98, 210447), (126, 163681), (134, 153909), (147, 140298), (201, 102606), (294, 70149), (349, 59094), (402, 51303), (441, 46766), (469, 43974), (603, 34202), (698, 29547), (882, 23383), (938, 21987), (1047, 19698), (1206, 17101), (1407, 14658), (2094, 9849), (2443, 8442), (2814, 7329), (3141, 6566), (3283, 6282), (4221, 4886)]