21467955

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 36071424

約数和(自身を除く): 14603469

約数列:

[1, 3, 5, 15, 37, 47, 111, 141, 185, 235, 555, 705, 823, 1739, 2469, 4115, 5217, 8695, 12345, 26085, 30451, 38681, 91353, 116043, 152255, 193405, 456765, 580215, 1431197, 4293591, 7155985, 21467955]

約数ペア:

[(1, 21467955), (3, 7155985), (5, 4293591), (15, 1431197), (37, 580215), (47, 456765), (111, 193405), (141, 152255), (185, 116043), (235, 91353), (555, 38681), (705, 30451), (823, 26085), (1739, 12345), (2469, 8695), (4115, 5217)]