21759388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2689}}^1$

素因数の和:2734

約数の個数: 36

約数和(自身を含む): 46246480

約数和(自身を除く): 24487092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2689, 4046, 5378, 8092, 10756, 18823, 37646, 45713, 75292, 91426, 182852, 319991, 639982, 777121, 1279964, 1554242, 3108484, 5439847, 10879694, 21759388]

約数ペア:

[(1, 21759388), (2, 10879694), (4, 5439847), (7, 3108484), (14, 1554242), (17, 1279964), (28, 777121), (34, 639982), (68, 319991), (119, 182852), (238, 91426), (289, 75292), (476, 45713), (578, 37646), (1156, 18823), (2023, 10756), (2689, 8092), (4046, 5378)]