20661661503

素因数分解:

$3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{631}}^1\times {\mathrm{1693}}^1$

素因数の和:2644

約数の個数: 48

約数和(自身を含む): 34293715456

約数和(自身を除く): 13632053953

約数列:

[1, 3, 7, 9, 21, 63, 307, 631, 921, 1693, 1893, 2149, 2763, 4417, 5079, 5679, 6447, 11851, 13251, 15237, 19341, 35553, 39753, 106659, 193717, 519751, 581151, 1068283, 1356019, 1559253, 1743453, 3204849, 3638257, 4068057, 4677759, 7477981, 9614547, 10914771, 12204171, 22433943, 32744313, 67301829, 327962881, 983888643, 2295740167, 2951665929, 6887220501, 20661661503]

約数ペア:

[(1, 20661661503), (3, 6887220501), (7, 2951665929), (9, 2295740167), (21, 983888643), (63, 327962881), (307, 67301829), (631, 32744313), (921, 22433943), (1693, 12204171), (1893, 10914771), (2149, 9614547), (2763, 7477981), (4417, 4677759), (5079, 4068057), (5679, 3638257), (6447, 3204849), (11851, 1743453), (13251, 1559253), (15237, 1356019), (19341, 1068283), (35553, 581151), (39753, 519751), (106659, 193717)]