20904832

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{739}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 47552400

約数和(自身を除く): 26647568

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 739, 832, 884, 1088, 1478, 1664, 1768, 2176, 2956, 3536, 5912, 7072, 9607, 11824, 12563, 14144, 19214, 23648, 25126, 28288, 38428, 47296, 50252, 76856, 94592, 100504, 153712, 163319, 201008, 307424, 326638, 402016, 614848, 653276, 804032, 1229696, 1306552, 1608064, 2613104, 5226208, 10452416, 20904832]

約数ペア:

[(1, 20904832), (2, 10452416), (4, 5226208), (8, 2613104), (13, 1608064), (16, 1306552), (17, 1229696), (26, 804032), (32, 653276), (34, 614848), (52, 402016), (64, 326638), (68, 307424), (104, 201008), (128, 163319), (136, 153712), (208, 100504), (221, 94592), (272, 76856), (416, 50252), (442, 47296), (544, 38428), (739, 28288), (832, 25126), (884, 23648), (1088, 19214), (1478, 14144), (1664, 12563), (1768, 11824), (2176, 9607), (2956, 7072), (3536, 5912)]