21569548

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5387}}^1$

素因数の和:5422

約数の個数: 48

約数和(自身を含む): 50690304

約数和(自身を除く): 29120756

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5387, 10774, 21548, 37709, 59257, 70031, 75418, 118514, 140062, 150836, 237028, 280124, 414799, 490217, 770341, 829598, 980434, 1540682, 1659196, 1960868, 3081364, 5392387, 10784774, 21569548]

約数ペア:

[(1, 21569548), (2, 10784774), (4, 5392387), (7, 3081364), (11, 1960868), (13, 1659196), (14, 1540682), (22, 980434), (26, 829598), (28, 770341), (44, 490217), (52, 414799), (77, 280124), (91, 237028), (143, 150836), (154, 140062), (182, 118514), (286, 75418), (308, 70031), (364, 59257), (572, 37709), (1001, 21548), (2002, 10774), (4004, 5387)]