20948940159

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1049}}^1\times {\mathrm{1861}}^1$

素因数の和:3000

約数の個数: 48

約数和(自身を含む): 32986447200

約数和(自身を除く): 12037507041

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1049, 1533, 1861, 3147, 3577, 5583, 7343, 10731, 13027, 22029, 39081, 51401, 76577, 91189, 135853, 154203, 229731, 273567, 407559, 536039, 950971, 1608117, 1952189, 2852913, 3752273, 5856567, 6656797, 11256819, 13665323, 19970391, 40995969, 95657261, 142509797, 286971783, 427529391, 997568579, 2992705737, 6982980053, 20948940159]

約数ペア:

[(1, 20948940159), (3, 6982980053), (7, 2992705737), (21, 997568579), (49, 427529391), (73, 286971783), (147, 142509797), (219, 95657261), (511, 40995969), (1049, 19970391), (1533, 13665323), (1861, 11256819), (3147, 6656797), (3577, 5856567), (5583, 3752273), (7343, 2852913), (10731, 1952189), (13027, 1608117), (22029, 950971), (39081, 536039), (51401, 407559), (76577, 273567), (91189, 229731), (135853, 154203)]