20388018

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2237}}^1$

素因数の和:2287

約数の個数: 48

約数和(自身を含む): 48985344

約数和(自身を除く): 28597326

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 93, 98, 147, 186, 217, 294, 434, 651, 1302, 1519, 2237, 3038, 4474, 4557, 6711, 9114, 13422, 15659, 31318, 46977, 69347, 93954, 109613, 138694, 208041, 219226, 328839, 416082, 485429, 657678, 970858, 1456287, 2912574, 3398003, 6796006, 10194009, 20388018]

約数ペア:

[(1, 20388018), (2, 10194009), (3, 6796006), (6, 3398003), (7, 2912574), (14, 1456287), (21, 970858), (31, 657678), (42, 485429), (49, 416082), (62, 328839), (93, 219226), (98, 208041), (147, 138694), (186, 109613), (217, 93954), (294, 69347), (434, 46977), (651, 31318), (1302, 15659), (1519, 13422), (2237, 9114), (3038, 6711), (4474, 4557)]