20966576

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4057}}^1$

素因数の和:4101

約数の個数: 40

約数和(自身を含む): 45287280

約数和(自身を除く): 24320704

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 4057, 5168, 8114, 16228, 32456, 64912, 68969, 77083, 137938, 154166, 275876, 308332, 551752, 616664, 1103504, 1233328, 1310411, 2620822, 5241644, 10483288, 20966576]

約数ペア:

[(1, 20966576), (2, 10483288), (4, 5241644), (8, 2620822), (16, 1310411), (17, 1233328), (19, 1103504), (34, 616664), (38, 551752), (68, 308332), (76, 275876), (136, 154166), (152, 137938), (272, 77083), (304, 68969), (323, 64912), (646, 32456), (1292, 16228), (2584, 8114), (4057, 5168)]