20367529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 26417664

約数和(自身を除く): 6050135

約数列:

[1, 7, 13, 41, 53, 91, 103, 287, 371, 533, 689, 721, 1339, 2173, 3731, 4223, 4823, 5459, 9373, 15211, 28249, 29561, 38213, 54899, 70967, 197743, 223819, 384293, 496769, 1566733, 2909647, 20367529]

約数ペア:

[(1, 20367529), (7, 2909647), (13, 1566733), (41, 496769), (53, 384293), (91, 223819), (103, 197743), (287, 70967), (371, 54899), (533, 38213), (689, 29561), (721, 28249), (1339, 15211), (2173, 9373), (3731, 5459), (4223, 4823)]