19267885

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 31352832

約数和(自身を除く): 12084947

約数列:

[1, 5, 7, 13, 17, 35, 47, 53, 65, 85, 91, 119, 221, 235, 265, 329, 371, 455, 595, 611, 689, 799, 901, 1105, 1547, 1645, 1855, 2491, 3055, 3445, 3995, 4277, 4505, 4823, 5593, 6307, 7735, 10387, 11713, 12455, 17437, 21385, 24115, 27965, 31535, 32383, 42347, 51935, 58565, 72709, 81991, 87185, 161915, 211735, 226681, 296429, 363545, 409955, 550511, 1133405, 1482145, 2752555, 3853577, 19267885]

約数ペア:

[(1, 19267885), (5, 3853577), (7, 2752555), (13, 1482145), (17, 1133405), (35, 550511), (47, 409955), (53, 363545), (65, 296429), (85, 226681), (91, 211735), (119, 161915), (221, 87185), (235, 81991), (265, 72709), (329, 58565), (371, 51935), (455, 42347), (595, 32383), (611, 31535), (689, 27965), (799, 24115), (901, 21385), (1105, 17437), (1547, 12455), (1645, 11713), (1855, 10387), (2491, 7735), (3055, 6307), (3445, 5593), (3995, 4823), (4277, 4505)]