21143536

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 42434784

約数和(自身を除く): 21291248

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 167, 193, 328, 334, 386, 656, 668, 772, 1336, 1544, 2672, 3088, 6847, 7913, 13694, 15826, 27388, 31652, 32231, 54776, 63304, 64462, 109552, 126608, 128924, 257848, 515696, 1321471, 2642942, 5285884, 10571768, 21143536]

約数ペア:

[(1, 21143536), (2, 10571768), (4, 5285884), (8, 2642942), (16, 1321471), (41, 515696), (82, 257848), (164, 128924), (167, 126608), (193, 109552), (328, 64462), (334, 63304), (386, 54776), (656, 32231), (668, 31652), (772, 27388), (1336, 15826), (1544, 13694), (2672, 7913), (3088, 6847)]