21143295

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8243}}^1$

素因数の和:8276

約数の個数: 32

約数和(自身を含む): 39571200

約数和(自身を除く): 18427905

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8243, 24729, 41215, 74187, 123645, 156617, 222561, 370935, 469851, 783085, 1112805, 1409553, 2349255, 4228659, 7047765, 21143295]

約数ペア:

[(1, 21143295), (3, 7047765), (5, 4228659), (9, 2349255), (15, 1409553), (19, 1112805), (27, 783085), (45, 469851), (57, 370935), (95, 222561), (135, 156617), (171, 123645), (285, 74187), (513, 41215), (855, 24729), (2565, 8243)]