21331065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{911}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 39223296

約数和(自身を除く): 17892231

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 223, 669, 911, 1115, 1561, 2733, 3345, 4555, 4683, 6377, 7805, 13665, 19131, 23415, 31885, 95655, 203153, 609459, 1015765, 1422071, 3047295, 4266213, 7110355, 21331065]

約数ペア:

[(1, 21331065), (3, 7110355), (5, 4266213), (7, 3047295), (15, 1422071), (21, 1015765), (35, 609459), (105, 203153), (223, 95655), (669, 31885), (911, 23415), (1115, 19131), (1561, 13665), (2733, 7805), (3345, 6377), (4555, 4683)]