20136207

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 34588512

約数和(自身を除く): 14452305

約数列:

[1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 147, 257, 273, 287, 533, 637, 771, 861, 1599, 1799, 1911, 2009, 3341, 3731, 5397, 6027, 10023, 10537, 11193, 12593, 23387, 26117, 31611, 37779, 70161, 73759, 78351, 136981, 163709, 221277, 410943, 491127, 516313, 958867, 1548939, 2876601, 6712069, 20136207]

約数ペア:

[(1, 20136207), (3, 6712069), (7, 2876601), (13, 1548939), (21, 958867), (39, 516313), (41, 491127), (49, 410943), (91, 221277), (123, 163709), (147, 136981), (257, 78351), (273, 73759), (287, 70161), (533, 37779), (637, 31611), (771, 26117), (861, 23387), (1599, 12593), (1799, 11193), (1911, 10537), (2009, 10023), (3341, 6027), (3731, 5397)]