21025970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15809}}^1$

素因数の和:15842

約数の個数: 32

約数和(自身を含む): 45532800

約数和(自身を除く): 24506830

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15809, 31618, 79045, 110663, 158090, 221326, 300371, 553315, 600742, 1106630, 1501855, 2102597, 3003710, 4205194, 10512985, 21025970]

約数ペア:

[(1, 21025970), (2, 10512985), (5, 4205194), (7, 3003710), (10, 2102597), (14, 1501855), (19, 1106630), (35, 600742), (38, 553315), (70, 300371), (95, 221326), (133, 158090), (190, 110663), (266, 79045), (665, 31618), (1330, 15809)]