21942728

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 42435360

約数和(自身を除く): 20492632

約数列:

[1, 2, 4, 8, 43, 86, 172, 227, 281, 344, 454, 562, 908, 1124, 1816, 2248, 9761, 12083, 19522, 24166, 39044, 48332, 63787, 78088, 96664, 127574, 255148, 510296, 2742841, 5485682, 10971364, 21942728]

約数ペア:

[(1, 21942728), (2, 10971364), (4, 5485682), (8, 2742841), (43, 510296), (86, 255148), (172, 127574), (227, 96664), (281, 78088), (344, 63787), (454, 48332), (562, 39044), (908, 24166), (1124, 19522), (1816, 12083), (2248, 9761)]