20343843

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 13202397

約数列:

[1, 3, 9, 13, 31, 39, 71, 79, 93, 117, 213, 237, 279, 403, 639, 711, 923, 1027, 1209, 2201, 2449, 2769, 3081, 3627, 5609, 6603, 7347, 8307, 9243, 16827, 19809, 22041, 28613, 31837, 50481, 72917, 85839, 95511, 173879, 218751, 257517, 286533, 521637, 656253, 1564911, 2260427, 6781281, 20343843]

約数ペア:

[(1, 20343843), (3, 6781281), (9, 2260427), (13, 1564911), (31, 656253), (39, 521637), (71, 286533), (79, 257517), (93, 218751), (117, 173879), (213, 95511), (237, 85839), (279, 72917), (403, 50481), (639, 31837), (711, 28613), (923, 22041), (1027, 19809), (1209, 16827), (2201, 9243), (2449, 8307), (2769, 7347), (3081, 6603), (3627, 5609)]