21184335

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2753}}^1$

素因数の和:2789

約数の個数: 40

約数和(自身を含む): 39988080

約数和(自身を除く): 18803745

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2753, 7695, 8259, 13765, 24777, 41295, 52307, 74331, 123885, 156921, 222993, 261535, 371655, 470763, 784605, 1114965, 1412289, 2353815, 4236867, 7061445, 21184335]

約数ペア:

[(1, 21184335), (3, 7061445), (5, 4236867), (9, 2353815), (15, 1412289), (19, 1114965), (27, 784605), (45, 470763), (57, 371655), (81, 261535), (95, 222993), (135, 156921), (171, 123885), (285, 74331), (405, 52307), (513, 41295), (855, 24777), (1539, 13765), (2565, 8259), (2753, 7695)]