20771254

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 16677962

約数列:

[1, 2, 7, 14, 23, 46, 161, 251, 257, 322, 502, 514, 1757, 1799, 3514, 3598, 5773, 5911, 11546, 11822, 40411, 41377, 64507, 80822, 82754, 129014, 451549, 903098, 1483661, 2967322, 10385627, 20771254]

約数ペア:

[(1, 20771254), (2, 10385627), (7, 2967322), (14, 1483661), (23, 903098), (46, 451549), (161, 129014), (251, 82754), (257, 80822), (322, 64507), (502, 41377), (514, 40411), (1757, 11822), (1799, 11546), (3514, 5911), (3598, 5773)]