211319990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{64231}}^1$

素因数の和:64292

約数の個数: 32

約数和(自身を含む): 443971584

約数和(自身を除く): 232651594

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 329, 470, 658, 1645, 3290, 64231, 128462, 321155, 449617, 642310, 899234, 2248085, 3018857, 4496170, 6037714, 15094285, 21131999, 30188570, 42263998, 105659995, 211319990]

約数ペア:

[(1, 211319990), (2, 105659995), (5, 42263998), (7, 30188570), (10, 21131999), (14, 15094285), (35, 6037714), (47, 4496170), (70, 3018857), (94, 2248085), (235, 899234), (329, 642310), (470, 449617), (658, 321155), (1645, 128462), (3290, 64231)]