19705856

素因数分解:

$2^{12}\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:324

約数の個数: 52

約数和(自身を含む): 41872392

約数和(自身を除く): 22166536

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 283, 512, 544, 566, 1024, 1088, 1132, 2048, 2176, 2264, 4096, 4352, 4528, 4811, 8704, 9056, 9622, 17408, 18112, 19244, 34816, 36224, 38488, 69632, 72448, 76976, 144896, 153952, 289792, 307904, 579584, 615808, 1159168, 1231616, 2463232, 4926464, 9852928, 19705856]

約数ペア:

[(1, 19705856), (2, 9852928), (4, 4926464), (8, 2463232), (16, 1231616), (17, 1159168), (32, 615808), (34, 579584), (64, 307904), (68, 289792), (128, 153952), (136, 144896), (256, 76976), (272, 72448), (283, 69632), (512, 38488), (544, 36224), (566, 34816), (1024, 19244), (1088, 18112), (1132, 17408), (2048, 9622), (2176, 9056), (2264, 8704), (4096, 4811), (4352, 4528)]