21804368

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{307}}^1$

素因数の和:531

約数の個数: 40

約数和(自身を含む): 44455488

約数和(自身を除く): 22651120

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 193, 307, 368, 386, 614, 772, 1228, 1544, 2456, 3088, 4439, 4912, 7061, 8878, 14122, 17756, 28244, 35512, 56488, 59251, 71024, 112976, 118502, 237004, 474008, 948016, 1362773, 2725546, 5451092, 10902184, 21804368]

約数ペア:

[(1, 21804368), (2, 10902184), (4, 5451092), (8, 2725546), (16, 1362773), (23, 948016), (46, 474008), (92, 237004), (184, 118502), (193, 112976), (307, 71024), (368, 59251), (386, 56488), (614, 35512), (772, 28244), (1228, 17756), (1544, 14122), (2456, 8878), (3088, 7061), (4439, 4912)]