21916411179

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1\times {\mathrm{20173}}^1$

素因数の和:20591

約数の個数: 32

約数和(自身を含む): 31926565440

約数和(自身を除く): 10010154261

約数列:

[1, 3, 13, 39, 89, 267, 313, 939, 1157, 3471, 4069, 12207, 20173, 27857, 60519, 83571, 262249, 362141, 786747, 1086423, 1795397, 5386191, 6314149, 18942447, 23340161, 70020483, 82083937, 246251811, 561959261, 1685877783, 7305470393, 21916411179]

約数ペア:

[(1, 21916411179), (3, 7305470393), (13, 1685877783), (39, 561959261), (89, 246251811), (267, 82083937), (313, 70020483), (939, 23340161), (1157, 18942447), (3471, 6314149), (4069, 5386191), (12207, 1795397), (20173, 1086423), (27857, 786747), (60519, 362141), (83571, 262249)]