20021937

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 32254848

約数和(自身を除く): 12232911

約数列:

[1, 3, 13, 17, 23, 39, 51, 69, 101, 169, 221, 299, 303, 391, 507, 663, 897, 1173, 1313, 1717, 2323, 2873, 3887, 3939, 5083, 5151, 6969, 8619, 11661, 15249, 17069, 22321, 30199, 39491, 51207, 66079, 66963, 90597, 118473, 198237, 290173, 392587, 513383, 870519, 1177761, 1540149, 6673979, 20021937]

約数ペア:

[(1, 20021937), (3, 6673979), (13, 1540149), (17, 1177761), (23, 870519), (39, 513383), (51, 392587), (69, 290173), (101, 198237), (169, 118473), (221, 90597), (299, 66963), (303, 66079), (391, 51207), (507, 39491), (663, 30199), (897, 22321), (1173, 17069), (1313, 15249), (1717, 11661), (2323, 8619), (2873, 6969), (3887, 5151), (3939, 5083)]