215996858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127507}}^1$

素因数の和:127538

約数の個数: 24

約数和(自身を含む): 407005536

約数和(自身を除く): 191008678

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 127507, 255014, 892549, 1402577, 1785098, 2805154, 9818039, 15428347, 19636078, 30856694, 107998429, 215996858]

約数ペア:

[(1, 215996858), (2, 107998429), (7, 30856694), (11, 19636078), (14, 15428347), (22, 9818039), (77, 2805154), (121, 1785098), (154, 1402577), (242, 892549), (847, 255014), (1694, 127507)]