21300748

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40039}}^1$

素因数の和:40069

約数の個数: 24

約数和(自身を含む): 44844800

約数和(自身を除く): 23544052

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40039, 80078, 160156, 280273, 560546, 760741, 1121092, 1521482, 3042964, 5325187, 10650374, 21300748]

約数ペア:

[(1, 21300748), (2, 10650374), (4, 5325187), (7, 3042964), (14, 1521482), (19, 1121092), (28, 760741), (38, 560546), (76, 280273), (133, 160156), (266, 80078), (532, 40039)]