20963584

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4817}}^1$

素因数の和:4850

約数の個数: 36

約数和(自身を含む): 44315964

約数和(自身を除く): 23352380

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4817, 9634, 19268, 38536, 77072, 81889, 154144, 163778, 308288, 327556, 616576, 655112, 1233152, 1310224, 2620448, 5240896, 10481792, 20963584]

約数ペア:

[(1, 20963584), (2, 10481792), (4, 5240896), (8, 2620448), (16, 1310224), (17, 1233152), (32, 655112), (34, 616576), (64, 327556), (68, 308288), (128, 163778), (136, 154144), (256, 81889), (272, 77072), (544, 38536), (1088, 19268), (2176, 9634), (4352, 4817)]